Answer:
Part a)
Part b)
Part c)
Part d)
Part e)
Part f)
It is independent of the speed of the object so all part answers will remain the same
Explanation:
Part a)
As we know that Point P is at height 5R while point Q is at height R
so the work done by gravity from P to Q is given as
Part b)
When it reaches to the top of the loop then its final height from ground is
h = 2R
so work done from P to Q is given as
Part c)
Potential energy at P point is given as
Part d)
Potential energy at Q point is given as
Part e)
Potential energy at top point is given as
Part f)
Since all the answer from part a) to part e) depends only upon the position of the object.
So here we can say that it is independent of the speed of the object so all part answers will remain the same