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प्रश्न
What do you mean by a centrifugal force?
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उत्तर
Centrifugal force is a pseudo force that appears to act on a body moving in a circular path, directed away from the center of the circle, when observed from a rotating frame of reference.
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संबंधित प्रश्न
A stone of mass m is rotated in a circular path with a uniform speed by tying a strong string with the help of your hand. Answer the following questions
1) Is the stone moving with a uniform or variable speed?
2) Is the stone moving with a uniform acceleration? In which direction does the acceleration act?
3) What kind of force acts on the hand and state its direction?
Give an example when work done by the force of gravity acting on a body is zero even though the body gets displaced from its initial position.
State two factors on which power spent by a source depends. Explain your answer with examples.
A man spends 7.4 KJ energy in displacing a body by 74 m in the direction in which he applies force in 2.5 s. Calculate the force applied.
Is it possible that no transfer of energy may take place even when a force is applied to a body?
What is the S.I. unit of work? Define it.
State the practical unit mainly used in mechanical engineering and write down its equivalent in watt.
For the following scenario, state whether the work done by gravity is positive, negative, or zero.
A person walks on a levelled road.
