Question

An object thrown at a certain angle to the ground moves in a path and falls back to the ground the inital 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 of the object ?​

Answer 1

Answer:

the work done is 0(zero)

Explanation:

the force of the gravity is applied vertically on the path.therefore,the work done by the object is 0

Answer 2

Explanation:

Work is done when force applied produce motion in the direction of the force.

In this case :-

But the displacement of the body is the horizontal direction.

Since, angle between force and displacement is 90°.

Now, the work done is 0 as the initial and final velocity are on the same path so the height will be 0.

Force is applied in the vertical direction.

We know that,

★ W = m × g × h ★

where,

Work = Work Done

m = Mass

g = Gravity

h = Height

⇒ W = m × g × h

⇒ W = m × g × 0

➠ W = 0 J