The rope of a swing is 3.00 m long. Calculate the angle from the vertical at which a 91.0 kg man must begin to swing in order to have the same KE at the bottom as a 1530 kg car moving at 1.29 m/s (2.89 mph).

Explanation:

First, let calculate the kinetic energy of the car:

The angle from the vertical is:

positive reinforcement? ?

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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