Physics Assignment for IT 2

Answer the following problems and submit on Monday, 5/14/2012

1. 1. A shopper in a supermarket pushes a cart with a force of35 N directed at an angle of 25° downward from the horizontal.Find the work done by the shopper as she movesdown a 50-m length of aisle.
2. 2. A 7.00-kg bowling ball moves at 3.00 m/s. How fast must a2.45-g Ping-Pong ball move so that the two balls have the same kinetic energy?
3. Find the height from which you would have to drop a ball so that it would have a speed of 9.0 m/s just before it hits the ground.
4. The electric motor of a model train accelerates the train from rest to 0.620 m/s in 21.0 ms. The total mass of thetrain is 875 g. Find the average power delivered to the train during its acceleration.

Physics Homework for MLS 2A

Download the link below, print and answer. Submit this paper on Monday, 5/14/2012.
http://www.scribd.com/doc/91766408/PhsyLabfq3

Also answer item number 2 and 3 of your Experiment 19, 20 and 21.