A spring is fixed at the top of the smooth slope, and the object slides to the right and rushes to the slope fixed on the ground. Suppose that the speed of the object at the lowest point a of the slope is V, and the spring is compressed Spring When it comes to point C, the spring is the shortest, and the height from point C to the ground is h, then how much work does the spring force do in the process from a to C? The answer is - 1 / 2mV ^ 2 = - MGH + W, but I want to use - 1 / 2mV ^ 2 = - mgh-w bullet. In the question, w bullet does negative work, so it's listed. If I move the term to find w, I will get a different formula from the answer (just opposite to each other). Where's my question?

A spring is fixed at the top of the smooth slope, and the object slides to the right and rushes to the slope fixed on the ground. Suppose that the speed of the object at the lowest point a of the slope is V, and the spring is compressed Spring When it comes to point C, the spring is the shortest, and the height from point C to the ground is h, then how much work does the spring force do in the process from a to C? The answer is - 1 / 2mV ^ 2 = - MGH + W, but I want to use - 1 / 2mV ^ 2 = - mgh-w bullet. In the question, w bullet does negative work, so it's listed. If I move the term to find w, I will get a different formula from the answer (just opposite to each other). Where's my question?

W-bomb does negative work
-1 / 2mV ^ 2 = - mgh-w bomb
This is negative at - W
The whole is reflected & nbsp;
So the answer is
-W
no
W