A rider is thrown off a horse and hits the ground. Fortunately, she is wearing a helmet. With reference to each of Newton's three laws of motion, explain how the helmet has helped protect the rider.
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A: 2 (a) 3(c) 4(e) 5(d) 6(b)
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A: solution is given by
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A: Dear student We can apply the equation of motion when acceleration is constant. Which is as : V = u…
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A: According to Newtons second law F= ma
Q: According to Newton's 2nd law of motion, O a. acceleration of an object is directly proportional to…
A: Answer:) acceleration of an object is directly proportional to the net force
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A: Newton’s law implies the relationship between the object’s motion and the forces acting on that…
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Q: A hand pushes a book against a wall? Both the book and the hand are at rest. Select two forces in…
A: When a hand pushes a book against a wall and both are at rest, there will be action and reaction…
Q: 1500 KG cars tire apply 3E3 in a force against the ground what will be it's acceleration
A: Given that:m=1500 kgF=3×103 N (Assuming unit of force to be N)
Q: 55. Which graph best represents the motion of an object on which the net force is zero? Time Time…
A: Given data: Different graphs of motion Required: The graph that best represents motion with net…
Q: 1. Net force causes an object at rest to start moving 2. Friction is perpendicular to the surfaces…
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Q: Which of these accurately describes Newton's third law? "The relationship among mass, acceleration…
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Q: What does Newton's 2nd Law state? O An object at rest stays at rest. An object in motion stays in…
A: What does newton's second law suggest .
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Q: Identify the action-reaction pairs of forces for the following situations (a) You step off a curb…
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Q: A net force of 20 N exerted on a wooden block produces an acceleration of 4 m/s2. The mass of the…
A: SOlution: A net force of 20 N exerted on a wooden block produces an acceleration of 4 m/s2. The mass…
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Q: 21. On the Superman roller coaster, you are able to experience an acceleration of 4.5 gs. If one g…
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Q: According to Newton's 1* Law, an object in motion will remain in motion. If an object is moving to…
A: Here is the correct option is (b) i.e speed up to the right.
Q: Newton’s third law states that forces always act in pairs but the two forces of any pair act on…
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Q: PLEASE WRITE THE ANSWER IN 10 MINUTES ! ! ! Which of the following correctly states Newton's second…
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Q: Which of the following situation applies Newton’s Second Law of Motion? * Pushing a shopping…
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Q: Newton's second law of motion states that the force acted on an object is equal to F = m•a. • F…
A: according to the newton's second law, F=ma
Q: An object at rest will remain at rest and an object in motion will remain in motion until and unless…
A: Newton's first law of motion states that a body will remain at rest, or, if in motion, remains in…
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A: newton's second law
Q: 65. Which graph best represents the motion of an object on which the net force is zero? Time Time…
A: Option 1 is the correct answer .
Q: According to Newton's 15t law of motion, if the net force acting is zero, a moving object increases…
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Q: When you are seated on the chair, your weight pushes on the chair while the chair pushes on you.…
A: When we’re seated on chair the weight acts downward and chair acts a force equal in magnitude but…
Q: A net force of 20 N exerted on a wooden block produces an acceleration of 4 m/s2. The mass of the…
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Q: The body will move only when____. *Choose the letter of the correct answer a. force of friction =…
A: Introduction: The friction force is a resistive force on the frictional surfaces of the object, it…
Q: What does Newton's 2nd Law state? O An object at rest stays at rest. An object in motion stays in…
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Q: The following statements are TRUE about Newton's Second Law of Motion EXCEPT: A) Mass and…
A: (C) is the correct option. Newton's second low of motion says force is equal to the change in…
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A: Correct option is : Option (d) - first
Q: What are the primary forces that act upon a baseball and a bat during their collision with each…
A: Option d is correct i.e force of ball on bat and force of bat on ball.
Q: A runner with a mass of 80 kg accelerates form 0 to 9 m/s in 3 s. Find the net force on the runner…
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Q: If an object is at rest, it will remain at rest unless an external force makes it move. Which of…
A: Given The object is at rest.
Q: 43. Which graph best represents the motion of an object on which the net force is zero? Time Time…
A: Part (43): Given: The net force on the object is zero.
Q: Nicholas, Brianna, Dylan and Chloe are practicing their hockey on frozen Bluebird Lake. As Dylan and…
A: a) The required acceleration is, b) The required friction force is,
Q: To which of Newton's Laws does the following statement apply? An object at rest will remain at rest,…
A:
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- A helicopter with mass 2.95 x 104 kg has a position given by r(t) = (0.050ti + 5.5tj - 0.090t-k) m. Find the net force on the helicopter at t = 3.0 s. (Express your answer in vector form. Assume that Fis in newtons when t is in seconds. Do not include units in your answer.)He continues on for a while until he encounters a 500. kg boulder blocking his way. He puffs up his chest, crouches a bit, and begins to push horizontally with a force of 2,205 N. The coefficient of friction between the ground and the boulder was 0.450. Was he able to move it out of the way?Two horses pull a cart with a total applied force of 2000N. The kinetic friction from the gravel road has a value of 450 N. Assuming the cart is 200 kg, what is its acceleration? Note that the road is flat and the horses are traveling in a straight path.
- A body hangs from a spring balance supported from the roof of an elevator. If the elevator has an upward acceleration of 4 m/s2 the balance reads 45N, what is the true weight of the body?Following the collision with a tree, the car rapidly decelerates and comes to a full stop in 0.26 seconds. Given that the passenger in the car has a mass of 70.0 kg and experiences a restraining force from the seat belt amounting to 4038 N, what was the car's initial velocity just before the impact with the tree?Accident analysis has led experts to believe that Princess Diana experienced a deceleration rate of no less than 700 m/s2 when she was involved in the tragic accident that claimed her life. If she had been wearing a seatbelt experts believe the net force Diana would have experienced would be along the lines of 18,000 N. What would be the rate of deacceleration have been? Assuming Diana had a mass of 60kg.
- A vendor pulls a 250 N cart filled with pop cases so that it rolls along a level floor where the force of friction is 43 N. If the worker exerts a force of 80 N @ 25⁰ on the handle of the cart, what is the acceleration of the cart?Two people play tug of war. The 100-kg person on the left pulls with 1100 N, and the 75-kg person on the right pulls with 870 N. Assume that neither person releases their grip on the rope with either hand at any time, assume that the rope is always taut, and assume that the rope does not stretch. What is the magnitude of the tension in the rope in Newtons? Add your answerAs a baseball is being caught, its speed goes from 31 to 0 m/s in about 0.008 s. Its mass is 0.145 kg. (Take the direction the baseball is thrown to be positive.) (a) What is the baseball's acceleration in m/s2? (Indicate the direction with the sign of your answer.)What is the baseball's acceleration in g's? (Indicate the direction with the sign of your answer.)(b) What is the force acting on it?
- A simple rearrangement of Newton's second law gives Fnet=ma. Find a net force that is needed to give a 13-kg package an acceleration of 8.0 m/s2 . (Note: The units kg⋅m/s2 and N are equivalent.). Express your answer to two significant figures and include the appropriate units.An inventive child named Nick wants to reach an apple in a tree without climbing the tree. Sitting in a chair connected to a rope that passes over a frictionless pulley (see Figure), Nick pulls on the loose end of the rope with such a force that the spring scale reads 250 N. Nick's true weight is 320 N, and the chair weighs 160 N. Nick's feet are not touching the ground. (a) Draw one pair of diagrams showing the forces for Nick and the chair considered as separate systems and another diagram for Nick and the chair considered as one system. (b) Show that the acceleration of the system is upward and find its magnitude. (c) Find the force Nick exerts on the chair. 2.A pitcher throws a softball toward home plate. When the ball hits the catcher’s mitt, its horizontal velocity is 32 meters/second. The softball’s velocity goes to 0 meters/second in 0.8 seconds when caught. If the softball has a mass of 0.2 kilograms, what’s the force of the impact? Use F = ma, where . The force of the impact is newtons.