Question

1. A force of 7 N acts on an object.
The displacement is, say 8 m, in
the direction of the force
(Fig. 11.3). Let us take it that the
force acts on the object through
the displacement. What is the
work done in this case?​

Answer 1

Answer:

Wor done = 56 J

Explanation:

F = 7 N

s = 8 m

W = FS

= 7 × 8

= 56 J

Answer 2

Answer:

The maximum height is 80 m and the total distance covered by the stone is 160 m and the displacement is zero.