posted by ANN on .
A 4.5-kg ham is thrown into a stationary 15-kg shopping cart. At what speed will the cart travel if the ham had an initial speed of 2.2 m/s? If the ham hits the cart with 2N of force, how long did the collision between the two last?
Use conservation of momentum for the first
question. They expect you to neglect friction. The ham will have to thrown in the direction the cart wheels are pointed.
4.5*2.2 = (4.5 + 15)*Vfinal
For the second question,
Force*Time = final cart momentum
= Vfinal*(15 kg)