Sunday

April 19, 2015

April 19, 2015

Posted by **Tomtom** on Sunday, December 13, 2009 at 11:51am.

A. 1000

B. 2000

C. 4000

D. 5000

2. A 20kg mass is held 4m above the ground. What is the approximate potential evergy of the mass with respect to the ground?

A. 5J.

B. 50J

C 80J

D. 800J

3. A TV set is pushed a distance of 2m with a force of 20 N that is in the same direcion as the set moves. How mauch work is done on the set?

A. 10J

B. 20J

C. 40J

D. 80J

- Physics -
**drwls**, Sunday, December 13, 2009 at 11:58amA. Impulse (Force x time) equals momentum change (velocity x mass)

Solve for the force

B. P.E. = M g H

C. Work = force x distance

You should know these formulas. You can do the calculations in your head.

- Physical -
**desk**, Saturday, October 23, 2010 at 3:54pma

c

d

physics help - A 1000-kg car moving at 10 m/s brakes to a stop in 5 s. The ...

physics asap - A 1000-kg car moving at 10 m/s brakes to a stop in 5 s. The ...

physics word problem - A 1000-kg car moving at 10 m/s brakes to a stop in 5 s. ...

physics - 1000 kg car moving at 10 m/s brakes to a stop in 5 s. The average ...

Science - Moving at 20 m/s , a remote controlled car of mass 1000kg hits a pile ...

Physics - Moving at 20 m/s , a remote controlled car of mass 1000kg hits a pile ...

physics - A car that weighs 15,000 N is initially moving at 60 km/hr when the ...

physics - A car that weighs 15,000 N is initially moving at 60km/hr when the ...

Stuck on 3d - Math - Suppose you’re thinking about buying a used car, but you’ve...

physics - Will check my work and help me with the last two problems please? A 4 ...