Betty, a Peninsular bighorn sheep, is rock climbing on their favorite stope one sunny summer morning when a rock becomes dislodged from a ledge 46,5 m directly above and comes hurtling
straight downward toward them. Betty ducks and avoids injury.
a. How fast is the rock traveling when it passes Betty?

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.