Question

The car C and its contents have a weight of 500lb, whereas block B has a weight of 280lb. At the initial instant, the car C is observed to have a speed of 4f(t)/(s) down the plane which is inclined at an angle of heta with respect to the horizontal as shown. At a later instant, the car C has moved a distance, L_(0), down the slope. Frictional effects as well as the masses of the pulleys and cables may be assumed negligible. A. Determine the car's speed when it travels L_(0)=30ft down the heta =20deg incline. In this part, students should analyze the car C and the block B separately to arrive at a solution. B. Determine the car's speed when it travels L_(0)=30ft down the heta =20deg incline. In this part, students should analyze the car C and the block B together as a system to arrive at a solution. C. For the conditions in part A, determine the tension in the cable. Note: Although this problem is located in the section dealing with potential energy and the conservation of energy equation, students should still apply the work-energy approach (rather than applying potential energy). The car Cand its contents have a weight of 500 Ib whereas block B has a weight of 280 Ib. At the initial instant,the car Cis observed to have a speed of 4 ft/s down the plane which is inclined at an angle of with respect to the horizontal as shown. At a later instant the car C has moved a distance,Lo,down the slope Frictional effects as well as the masses of the pulleys and cables may be assumed negligible. A. Determine the car's speed when it travels L=30 ft down the =20 incline. In this part students should analyze the car Cand the block B separately to arrive at a solution. B. Determine the car's speed when it travels Lo=30 ft down the =20incline. In this part, students should analyze the car C and the block B together as a system to arrive at a solution. C. For the conditions in part A, determine the tension in the cable Note: Although this problem is located in the section dealing with potential energy and the applying potential energy).

The car C and its contents have a weight of 500lb,
whereas block B has a weight of 280lb. At the initial
instant, the car C is observed to have a speed of 4f(t)/(s)
down the plane which is inclined at an angle of heta with
respect to the horizontal as shown. At a later instant,
the car C has moved a distance, L_(0), down the slope.
Frictional effects as well as the masses of the pulleys
and cables may be assumed negligible.
A. Determine the car's speed when it travels L_(0)=30ft down the heta =20deg incline. In this part,
students should analyze the car C and the block B separately to arrive at a solution.
B. Determine the car's speed when it travels L_(0)=30ft down the heta =20deg incline. In this part,
students should analyze the car C and the block B together as a system to arrive at a solution.
C. For the conditions in part A, determine the tension in the cable.
Note: Although this problem is located in the section dealing with potential energy and the
conservation of energy equation, students should still apply the work-energy approach (rather than
applying potential energy).
The car Cand its contents have a weight of 500 Ib whereas block B has a weight of 280 Ib. At the initial
instant,the car Cis observed to have a speed of 4 ft/s down the plane which is inclined at an angle of with
respect to the horizontal as shown. At a later instant the car C has moved a distance,Lo,down the slope Frictional effects as well as the masses of the pulleys
and cables may be assumed negligible.
A. Determine the car's speed when it travels L=30 ft down the =20 incline. In this part students should analyze the car Cand the block B separately to arrive at a solution.
B. Determine the car's speed when it travels Lo=30 ft down the =20incline. In this part,
students should analyze the car C and the block B together as a system to arrive at a solution.
C. For the conditions in part A, determine the tension in the cable
Note: Although this problem is located in the section dealing with potential energy and the
applying potential energy).

Added by Timothy G.

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