Advertisements
Advertisements
प्रश्न
If the work done by a force in moving an object through a distance of 20 cm is 24.2 J, what is the magnitude of the force?
Advertisements
उत्तर
Work done in moving the body, (W) = 24.2 J
Distance travelled by the body, (S) = 0.2 m
We have a relation as,
`F = W/S`
Therefore ,
`F = 24.2/0.2` N
= 121 N
APPEARS IN
संबंधित प्रश्न
Why is a jack screw provided with a long arm?
A body, when acted upon by a force of 10 kgf, moves to a distance 0.5 m in the direction of force. Find the work done by the force. Take 1 kgf = 10 N.
Choose one or more correct alternatives.
For work to be performed, energy must be ______.
- transferred from one place to another
- concentrated
- transformed from one type to another
- destroyed
How fast should a boy weighting 30 kg run so that his kinetic energy is 375 joule?
Fill in the boxe to show the corresponding energy transformation.

Explain, why submarines are able to dive underwater as well as a sail on the surface of the water?
A force is applied on a body of mass 20 kg moving with a velocity of 40 ms−1. The body attains a velocity of 50 ms−1 in 2 seconds. Calculate the work done by the body.
Force acting on a particle moving in a straight line varies with the velocity of the particle v as F = `K/v`, where K is a constant. The work done by this force in time t is
