The answer is 17500 J for 35*10*50 and the answer is 16500 J for 55*10*30. Thus , the first object has more gravitational potential energy
"Constant velocity" means zero acceleration, which means zero net force. So there must be100N pulling on the crate to cancel the 100N of friction force.
Answer: damping coefficient = 1.5×10^5Ns/m
Explanation:
Please find the attached file for the solution
A mixture is made of (elements).