Fred and Barney are driving through Bedrock at 15 m/s when suddenly a blue brontosaurus steps out in front of them. They immediately put their
feet down to begin decelerating at -4.5 m/s/s. How far do they travel
before stopping? *

Suppose you use a machine that gives you a mechanical advantage of 2 to achieve an output force of 30newtons what must the input force be

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.

Decreased sensitivity to an unchanging stimulus is known as