Saturday
April 19, 2014

Homework Help: Physics

Posted by Ellie on Friday, September 21, 2012 at 8:24pm.

Two 30kg children in a 20 kg cart are stationary at the top of a hill. They start rolling down the 80m tall hill and they are traveling at 30 km h-1 when they reach the bottom. (The cart had brakes!) How much work was done on the cart by friction during its travel down the hill? (Note: the use of the word on and remember to specify the sign of the work done.)

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - A 3 kg cart is moving along when it strikes a 2 kg cart (initially at ...
Physics - If a force F=200N is applied to the 34 kg cart, determine the time for...
Physics - Force - A 0.30kg lab cart is observed to accelerate twice as fast as a...
Physics - A 20.0 kg cart is moving with a velocity of 7.30 m/s down a level ...
Physics - A cart on a surface with a coefficient of friction of 0.20 is attached...
physics - A 2.4-kg cart is rolling along a frictionless, horizontal track ...
Physics - A 3.0-kg cart is rolling along a frictionless, horizontal track ...
physics - A 14.0 kg cart is moving with a velocity of 7.25 m/s down a level ...
science - A 10.0 kg cart and a 15 kg cart are locked together with a compressed ...
physics - A 4.5-kg ham is thrown into a stationary 15-kg shopping cart. At what ...

Search
Members