Q. A 75-kg trqampoline artist jumps vertically upward from the top of a platform with a speed of 5.00 m/s. (a) how fast is he going as he lands on the trampoline 3.0m below? (b) If the trampoline behaves like a spring of spring constant 5.2 x 10^4 N/m, how far does he depress it?
Q. A 88.00 N grocery cart is pushed 13 m along an aisle by a shopper who exerts a constant horizontal force of 40N. If all frictional forces are neglected and the cart starts from rest, what is the grocery cart's final speed?