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प्रश्न
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उत्तर
The physical quantity is force.
Force is a push or pull that can change or tend to change the state of rest, motion, or shape of a body.
Its gravitational unit is kilogram-force (kgf).
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संबंधित प्रश्न
What is thrust?
On what factors does the effect of thrust on a surface depend?
State Newton's Second law of motion. Under what conditon does it take the form F = ma?
A body X of mass 5 kg is moving with velocity 20 m s-2 while another body Y of mass 20 kg is moving with velocity 5 m S-1. Compare the momentum of the two bodies.
Calculate the acceleration produced in a body of mass 50 g when acted upon by a force of 20 N.
A nut is opened by a wrench of length 10 cm. if the least force required is 5.0 N. find the moment of force needed to turn the nut.
A steering wheel of diameter 0.5 m is rotated anticlockwise by applying two forces each of magnitude 6 N. Draw a diagram to show the application of forces and calculate the moment of forces applied.
Classify the following amongst contact and non-contact forces.
magnetic force
Give an example for each of the following uses of a machine:
to change the point of application of force
Two unlike forces (parallel) of 10 N and 25 N act at a distance of 12 cm. from each other. Find the point about which the body balance.
