1. A motor car of mass 1000 kg is travelling round a circular track with a velocity of 15 m/s. if the radius of the track is 400 m, find the horizontal thrust exerted on the wheels.

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:

-reverse card