Advertisements
Advertisements
प्रश्न
Write the expression for work done by a force.
Advertisements
उत्तर
Work done by applying force F is the product of the force applied on the body and distance moved by the body in the direction of force, work done = Force x distance moved in the direction of the force.
W = F × d

APPEARS IN
संबंधित प्रश्न
Name a common device where a gear train is used
State two conditions when no work is done by a force.
When is work said to be done by a force?
Nm is the unit of .......
What do you mean by a kilo joule?
How many joules are there in 1 mega joule?
State the amount of work done by an object when it moves in a circular path for one complete rotation. Give a reason to justify your answer.
An electric motor pump is 60% efficient and is rated 2.5 H.P. Calculate the maximum load it can lift through a height of 10m in 8 sec. (1 H.P. = 750 W).
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
A green plant is carrying out photosynthesis.
