Advertisements
Advertisements
प्रश्न
No work is done by a force if the body
पर्याय
moves in direction of force
does not move
moves in opposite direction
none of the these
Advertisements
उत्तर
does not move
APPEARS IN
संबंधित प्रश्न
Write an expression for the work done when a force is acting on an object in the direction of its displacement.
Define the term energy.
Is work a scalar or a vector quantity?
What is the SI unit of work?
Can work done be zero even if force acts on the body?
A body does 20 J of work in 10 s. What is its power?
Calculate the amount of work done by a child carrying a bag of 20 kg when he moves a distance of 40 m in
(a) Vertical direction, and
(b) Horizontal direction
Fill in the boxe to show the corresponding energy transformation.
In the following case write yes, if the work is being done and no if no work is being done.
A coolie standing with a heavy load on his head
State whether work is done or not, by writing yes or no, in the following case:
A man pushes a wall.
