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प्रश्न
Work done by this force at any instant is ______.
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उत्तर
Work done by this force at any instant is zero.
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संबंधित प्रश्न
Write an expression for the work done when a force is acting on an object in the direction of its displacement.
The energy of a body is its capacity to do .........
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Fill in the blank with suitable word :
1 joule is the work done when a force of 1 __________ moves an object through a distance of one __________ in the direction of __________.
In which of the following case the work done by a force will be maximum : when the angle between the direction of force and direction of motion is 0° or 90°?
Give two examples of work done.
In what way does an ‘Ideal machine’ differ from a ‘Practical machine’?
A block of mass 30 kg is pulled up a slope, as shown in diagram with a constant speed, by applying a force of 200 N parallel to slope.
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(ii) Calculate P.E. gained by block. [g=10ms-2]
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
Suma is swimming in a pond.
