Question

An object thrown at a certain angle to the ground moves in a curved path and falls back to the ground. The initial and the final points of the path of the object lie on the same horizontal line. What is the work done by the force of gravity on the object.​

Answer 1

Explanation:

You 1st have to specify that on which point of curve u have to find the work

In inital phase of the motion Work done is negative as angle between gravity and displacement is obtuse

at highest point of curve the angle between gravity and displacement is 90 so work done is zero

then body proceed in downward direction then...work done is positive because angle between gravity and displacement is acute

Answer 2

Answer:

Since the initial and final points of the path of an object thrown at an angle to the ground lie on the same horizontal line, the displacement of the object is only in the horizontal direction. Since there is no net displacement of the object in the vertical direction in which the force of gravity acts, therefore no work is done by the force of gravity on the object.

Explanation:

here is your answer