bestschoolessays Essay Writing

 
Problem Set Four
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?

GET AN ANSWER TO THIS ESSAY TODAY!

Save time and grade. Get a complete paper today.

Our leading custom writing service provides custom written papers in 80+ disciplines. Order essays, research papers, term papers, book reviews, assignments, dissertation, thesis or extensive dissertations & our expert ENL writers will easily prepare a paper according to your requirements.

Place this order today and get an amazing discount!!

Special offer! Get 20% discount on your first order. Promo code: SAVE20