Recent content by sunny17

Thank You. That makes sense so much more sense now.

Then say I get Intial KE as 100J and Final is 0 because it converts to PE then Change in KE is -100? Assuming the PE is 80J. If I were to find the work done by Friction would it be -100 - 80? = -180J? I thought it would be 100 - 80 = 20J.

Energy cannot be negative correct? I got negative Kinetic Energy but reported it as positive would this be right?

Homework Statement This is my first time posting here guys so correct me if I am wrong. This question was on my test and I wanted to know if I did it right. There is a block of mass m and it is moving at a certain velocity before pressing against a spring which compresses distance x. Find...