Notifications
Clear all
Work, Power And Energy
1
Posts
2
Users
0
Likes
220
Views
0
05/11/2021 11:05 am
Topic starter
When is the work done by a force on a body:
(a) positive
(b) negative
(c) zero
1 Answer
0
05/11/2021 11:06 am
Work done by a force applied on a body is:
(a) When the direction of motion of the body and the force acting in the same direction, work done is positive.
(b) When the direction of motion of the body and the force acting on the body are in the opposite direction, work done is negative.
(c) When the force is acting at a right angle to the direction of motion of the body, work done is zero.