Homework Help: Physics

Posted by Janet on Thursday, December 9, 2010 at 1:53am.

Tom pushes a 50 kg up a ramp. The ramp is 6 m long and is set at a 15 degree angle. Starting with an initial speed of 1 m/s, Tom begins pushing the box up with a force of 250N. What will the final speed of the box be at the top?

Physics - drwls, Thursday, December 9, 2010 at 2:05am
Are you supposed to assume the process is frictionless? I can't imagine a frictionless box on a ramp.

Conservation of energy would be a good way to attack the problem.

Subtract the potential energy increase from the work done by the person pushing.

If there is no friction, the difference will be the kinetic energy increase.

Answer this Question

Related Questions

Physics - Under less than ideal conditions, a student pushes a 6 kg cart holding...
Physics - Under less than ideal conditions, a student pushes a 6 kg cart holding...
Physics - Under less than ideal conditions, a student pushes a 6 kg cart holding...
Physics - Under less than ideal conditions, a student pushes a 6 kg cart holding...
Physics - Under less than ideal conditions, a student pushes a 6 kg cart holding...
CP Physics - Under less than ideal conditions, a student pushes a 6 kg cart ...
Physics - Can someone post numerical answers!! Under less than ideal conditions...
Physics - A crate of mass 29 kg is pushed up a ramp by a person as shown in the ...
Physics - Can someone actually ANSWER the question pleas and post numerical ...
physics 2 - A man is dragging a trunk up the loading ramp of mover's truck. ...

For Further Reading

First Name:
School Subject:
Answer: