Wednesday
September 24, 2014

Homework Help: physics

Posted by Kim on Wednesday, November 30, 2011 at 8:26pm.

A 69.4-kg skier coasts up a snow-covered hill that makes an angle of 24.3 with the horizontal. The initial speed of the skier is 7.04 m/s. After coasting 1.78 m up the slope, the skier has a speed of 3.04 m/s. Calculate the work done by the kinetic frictional force that acts on the skis.

I've done this question 3 different times, CAPA doesn't accept my answer.

I've used Energy lost as friction = KElost - PEgained, getting 900 J. But this isn't right. I don't know what else to do.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - A 64.2-kg skier coasts up a snow-covered hill that makes an angle of ...
physics - A 64.9 kg skier coasts up a snow-covered hill that makes an angle of ...
physics - A 64.9 kg skier coasts up a snow-covered hill that makes an angle of ...
Physics 1 - A 64.9 kg skier coasts up a snow-covered hill that makes an angle of...
Physics - A 61.8 kg skier coasts up a snow-covered hill that makes an angle of ...
physics - A 65.0-kg skier coasts up a snow-covered hill that makes an angle of ...
science - A 71.9-kg skier coasts up a snow-covered hill that makes an angle of ...
physics - A 60 kg skier with an initial speed of 12 m/s coasts up a 2.5 m high ...
physics - a 75.0 kilogram skier is at the top of a hill that is thirty degrees ...
Physic - A 61-kg skier, coasting down a hill that is an angle of 23 to the ...

Search
Members