A swimmer dives off a cliff with a running horizontal leap as shown in the figure. How long will it take for the diver to fall from a height of 9.00 [m]? What must be her minimum running speed so that she will miss the ledge at the bottom?

Q: you throw a rock horizontally off a cliff with a speed of 20 m/s and no significant air resistance.…

A: From the kinematics equation, the expression for the final vertical velocity of the rock is:…

Q: If you drop an object from a height of 1.8 m, it will hit the ground in 0.60s. If you throw a…

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Q: If you drop an object from a height of 1.1 m, it will hit the ground in 0.47 s. If you throw a…

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Q: If you deop an object from a height of 1.1 m, it will hit the ground in 0.47s. If you throw a…

A: First object :Initial speed = 0 msTime taken to reach ground = 0.47 seconds Height = 1.1 m Second…

Q: A Napoleon cannon has a muzzle velocity of 450 m/s. If the cannon is fired at an elevation of 5.1°,…

A: muzzle velocity (v) = 450 mslaunch angle (θ) = 5.1o

Q: If you drop an object from a height of 2.1 m, it will hit the ground in 0.65 s. If you throw a…

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Q: A ball is thrown so that it just clears a 3m fence 18m away. If it left the hand 1.5m above the…

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Q: A photographer inside a helicopter descending vertically at 15m/s at an altitude of 55m accidentally…

A: Descending speed of helicopter =15 m/sInitial height of helicopter (H)= 55 m Therefore, initial…

Q: If a baseball pitcher throws a fastball at a horizontal speed of 160 km/h, how long does the ball…

A: The expression for distance in term of velocity is,

Q: A baseball is hit from a height of 4.4 feet above the ground with an initial velocity of 104 feet…

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Q: A projectile is launched with an initial velocity vo = 5 m/s making an angle 6, = 20° below the…

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Q: A tiger leaps horizontally out of a tree that is 3.10 m high. If she lands 4.50 m from the base…

A: Given,Height from ground, h = 3.10 mHorizontal landing distance, d = 4.50 mAcceleration of gravity,…

Q: A tiger leaps horizontally from a 6.5 m high rock at 3.5 m/s.  How far from the base of the rock…

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Q: A water pistol aimed horizontally projects a stream of water with an initial speed of 4.00 m/s. How…

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Q: a football is kicked at ground level with a speed of 18.0m/s at an angle of 35 degrees to the…

A: The path on which football moves is a trajectory of projectile motion.The time taken by the ball to…

Q: A circus player throws his balls vertically upwards for a distance of 1 m. How high must he throw…

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Q: An osprey flies horizontally with a constant speed of 6.8 m>swhen it drops the fish it was…

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Q: A basketball player 2.05m tall takes a shot when he is 6.02m away from the basket. If the launch…

A: A basketball player 2.05m tall takes a shot when he is 6.02m away from the basket. If the launch…

Q: A rifle, at a height H above the ground, fires a bullet parallel to the ground. At the same instant…

A: Initial velocity of first bullet = u (in horizontal direction) Initial velocity of second bullet = 0…

Q: a projectile is going up at 40 m/s how long will it take to reach the top

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Q: What constant acceleration is required to bring a rocket to an altitude of 650 meters [up] from rest…

A: Given:

Q: A long jumper can jump a distance of 8.0 m when he takes off at an angle of 45° with respect to the…

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Q: The launch velocity of a toy car launcher is determined to be 5 m/s. If the car is to be launched…

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Q: A ball thrown vertically from the Highway is shot 3.0 s later by a person on a balcony located 14 m…

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Q: A ball is kicked horizontally from a cliff 5.01m high at 8 m/s. How far from the base of the cliff…

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Q: You want to throw a ball vertically upwards so that it will go up 50 meters before turning around.…

A: Given : h = 50 m v = 0 because finally the ball reaches ground

Q: the best leaper in an animal kingdom is the puma, which can jumpto a height of 3.7m when leaving the…

A: Let u be the initial velocity of the puma. It can jump up to a height of 3.7 m when leaving the…

Q: projectile is launched horizontally with velocity of 25 m/s from the top of 75 m height . How many…

A: given that projectile is launched horizontally from 75m height ∴ its vertical component of velocity…

Q: You toss an apple horizontally at 8.4 m/sm/s from a height of 2.0 mm. Simultaneously, you drop a…

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Q: During practice, a volleyball player has thrown a ball vertically upward with a speed of 50 ft/s. If…

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Q: A stuffed toy was thrown at 24 m/s horizontally from the bridge 25 m high (above the water) towards…

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Q: A ball thrown vertically from the Highway is managed 3.0 s later by a person on a balcony located 14…

A: Introduction: Projectile motion is the motion of the particle in two dimension. The motion of the…

Q: You threw a tennis ball from a balcony 4.1 m above the ground upward at 45 degrees above horizontal…

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Q: A boy throws a rock with an initial velocity at 3.13 m/s at 30 degrees above the horizontal.  How…

A: Initial velocity u=3.13 msAngle of inclination θ=30°acceleration due to gravity=g=9.8 ms2 Here ,…

Q: A tiger leaps horizontally out of a tree that is 4.30 m high. If she lands 5.00 m from the base of…

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Q: Neglecting air resistance, if a ball is thrown 4.5 m/s horizontally from a 94-m cliff, how far has…

A: The second equation of motion can be given as, s = ut + 12at2, where u is the initial velocity of…

Q: a tiger leaps horizontally from a 7.5m high rock with a speed of 3.0 m/s. How far from the base of…

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Q: A ball is thrown horizontally from a height of 5.50m with an initial velocity of 25 m/s. How long…

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Q: A stone is thrown horizontally by Gabby with an initial speed of 25 m/s from a bridge. Assuming that…

A: Given data *The initial speed of the stone is u = 25 m/s *The given height is H = 87 m

Q: A boy throws a ball with an initial velocity of 27 m/s at an angle of 25° above the horizontal. How…

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Q: At what point in its path is the vertical component of the velocity (vy) of an upward thrown…

A: For an upward thrown projectile

Q: With what speed must a ball be thrown vertically from ground level to rise to a maximum height of 50…

A: Let H be the maximum height reached by the ball. At maximum height, the final speed (vf) of the ball…

Q: A boy throws a ball with an initial velocity of 25 m/s at an angle of 30 above the horizontal, If…

A: Here, we calculate the given as follow;

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.