# 1. . A car weighing 14,000 N is speeding down the highway at 80 km/h. What is its momentum? 2. Two ice skaters stand face

1. . A car weighing 14,000 N is speeding down the highway at 80 km/h. What is its momentum? 2. Two ice skaters stand face to face and “push off” and travel directly away from each other. The boy has a velocity of 5 m/s and he weighs 750 N. The girl weighs 480 N. What is the girl’s velocity? 3. A 20,000 kg railroad car is traveling at 5 m/s when it collides and couples with a second, identical car at rest. What is the resulting speed of the combined cars? 4. A soccer player kicks a 2 kg ball with a force of 900 N. His toe is in contact with the ball for 2 s. What is the impulse? 5. A force of 140 N is required to push a table 5.0 meters across a level floor. How much work was done? 6. If 10,000 J of work was done to raise a 225 kg box, how high was the box raised? 7. What is the velocity of a 1,500 kg car if its kinetic energy is 350 kJ? 8. A 125 kg mass is on a cliff 55 m high. What is its potential energy? 9 How much work is done moving a 2.4 kg book to a shelf 4.0 m high? 10. A 150 pound man runs up a stairway 20 feet above ground level in 15 s. How much work did the man do?

### Need your ASSIGNMENT done? Use our paper writing service to score better and meet your deadline.

Click Here to Make an Order Click Here to Hire a Writer