Use the following information to answer the next question F=400N 18.0 kg Your answer Frictionless Surface For the system shown above, use force diagram analysis to determine the a) Acceleration of the system. [2 marks] b) Tension in the cord. [2 marks] 30.0 kg

Use the following information to answer the next question F=400N 18.0 kg Your answer Frictionless Surface For the system shown above, use force diagram analysis to determine the a) Acceleration of the system. [2 marks] b) Tension in the cord. [2 marks] 30.0 kg

Name: 9.Use the following information to answer the next questionF=400 N18.
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Description: 9.Use the following information to answer the next questionF=400 N18.0 kgYour answer:FrictionlessSurfaceFor the system shown above, use force diagram analysis to determine thea) Acceleration of the system. [2 marks]b) Tension in the cord. [2 marks]3

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter4: Dynamics: Force And Newton's Laws Of Motion

Section: Chapter Questions

Problem 7PE: (a) If the rocket sled shown in Figure 4.32 starts with only one rocket burning, what is the...

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(a) Give an example of different net external forces acting on the same system to produce different accelerations. (b) Give an example of the same net external force acting on systems of different masses, producing different accelerations. (c) What law accurately describes both effects? State it in words and as an equation.
(a) If the rocket sled shown in Figure 4.32 starts with only one rocket burning, what is the magnitude of its acceleration? Assume that the mass of the system is 2100 kg, the thrust T is 2.4104 N, and the force of friction opposing the motion is known to be 650 N. (b) Why is the acceleration not one-fourth of what it is with all rockets burning?
Consider the baby being weighed in the following figure. (a) What is the mass of the infant and basket if a scale reading of 55 N is observed? (b) What is tension T1in the cord attaching the baby to the scale? (c) What is tension T2, In the cord attaching the scale to the ceiling, If the scale has a mass of 0.500 kg? (d) Sketch the situation, indicating the system of interest used to solve each part. The masses of the cords are negligible.
While sliding a couch across a floor, Andrea and Jennifer exert forces FA and FJ on the couch. Andrea’s force is due north with a magnitude of 130.0 N and Jennifer’s force is 32 east of north with a magnitude of 180.0 N. (a) Find the net force in component form. (b) Find the magnitude and direction of the net force. (c) If Andrea and Jennifer’s housemates, David and Stephanie, disagree with the move and want to prevent its relocation, with what combined forceFDS should they push so that the couch does not move?
Ina traction setup a broken bone, with pulleys and rope available, how might we be able to Increase the force along the tibia using the weight? (See Figure 4.30) (Note that the tibia is the shin bone shown in this image.) Figure 4.30 A leg is suspended by a traction system in which wires used to transmit forces. Frictionless pulleys crw.ge the direction of the force T without changing Its magnitude.
Suppose a 60.0-kg gymnast climbs a rope. (a) What is the tension in the rope if he climbs at a constant speed? (b) What is the tension in the rope if he accelerates upward at a rate of 1.50 m/s2?
. Under certain conditions, the human body can safely withstand an acceleration of 10 g. (a) What net force would have to act on someone with mass of 50 kg to cause this acceleration? (b) Find the weight of such a person in pounds then convert the answer to (a) to pounds.
Suppose you have a 120-kg wooden crate resting on a wood floor. (a) What maximum force can you exert horizontally on the crate without moving it? (b) If you continue to exert this force once the crate starts to slip, what will the magnitude of its acceleration then be?
4. The 1.0 kg physics book in ngure is connected by a string to a 500 g cof ch un the slope and relcased with a speed of 3 m/s. The cocefficient of fri a) What is the acceleration of the objects? b) Draw a force diagram for an individual item. Find the tension in the rop analyze?) ans 6.73 m s', 1.54 N 20
3. A block of mass m = 5.9 kg is pulled up a 0 = 21° incline as in the figure below with a force of magnitude F = 37 N. (Hint: remember to measure all angles from +x axis.) y a. Draw a free body diagram showing all the forces. NORml Fte F Mass = 5.9k 0-21° F-37N there b. Determine the x and y components of all the forces. X Components of Force f = 37 N Y comporents of Force F=0N X componnt of normal force=ON * Componis of weight=-5.9x 9.8x Sin 210=70. FJN Y Comperents of weight=5.9a 9.8 x Casal. - 53.98 Y Compenents of normal force=mglos H%53.98, c. Write equations summing all the x components and all the y components. F-mg Sm@= mxa 37-20.72= 5.9x a 2.7l6 = Comporunts) Normal force - mg les 0: 05 53.98-53.98-0o d. Find the acceleration of the block if the incline is frictionless. (Give the magnitude of the acceleration. Find the acceleration of the block if the coefficient of kinetic friction between the block and incline is 0.12. (Give the magnitude of the acceleration.) е. 3
23. What is the accelerallof U tIT system? 3.NZ 24. What is the tension on the string? 2 howmor In the following diagram, block B weighs 711 N. The coefficient of static friction between the block and the table is 0.35, and the angle 0 is 30 degrees, assume that the cord between B and the knot is horizontal Ma tan 30 Bo 25. Find the static frictional force ? M. -7.24, 7/1 26. Find the maximum weight of block A for which the system 1-72:5g 98 T Ti కి 1/ will still be stationary. Al m 7, A 5000 kg dump truck has a maximum 400 hp (1 hp 746 W), and it is moving up on an inclined roa slope of 15 degrees. If the frictional coefficient on the road is 0.80, what is the max constant speed that ucker can maintain on the inclined? F v
Two blocks, M=8.00 kg and m-2.00 kg are touching and moving across a rough floor (Uk-0.12 at a speed of 4.0 m/s when a force acts on the blocks as shown. The force FO= 68 N directed 52 degrees below the horizontal, as shown. The two blocks are touching so the system can be treated as a single 10.0 kg block which we will call MT. This will apply for questions 13 thru 18.