Two pucks, each of mass m, are connected by a massless string of length 2l as illustrated below. the pucks lie on a horizontal, frictionless sheet of ice. the string is initially straight (i. e., θ = 90o ). a constant, horizontal force f is applied to the middle of the string in a direction perpendicular to the line joining the pucks. when the pucks collide, they stick together. how much mechanical energy is lost in the collision?

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

higher potential

explanation:

because it is in a high speed so it must move into a of high potential

answer( sicar );