For the following set of problems you will be dealing with objects moving in a circular path. Newton’s laws of motion still apply. The only difference is that if an object is moving in a circle at constant speed, the net force is given the name "centripetal force" and it is equal to:

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.