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प्रश्न
The work done on an object does not depend on the :
विकल्प
displacement
angle between force and displacement
force applied
initial velocity of the object
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उत्तर
The work done on an object does not depend upon the initial velocity of the moving object.
Therefore, the answer is, (d) Initial velocity of the object.
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संबंधित प्रश्न
Can there be displacement of an object in the absence of any force acting on it? Think. Discuss this question with your friends and teacher.
In each of the following a force, F is acting on an object of mass, m. The direction of displacement is from west to east, as shown by the longer arrow. Observe the diagrams carefully and state whether the work done by the force is negative, positive or zero.
What is the condition for a force to do work on a body?
How much work is done when a force of 2 N moves a body through a distance of 10 cm in the direction of force?
On what factors does the work done by a force depend?
A machine raises a load of 750 N through a height of 16 m in 5s. calculate:
(i) work done by machine,
(ii) power at which the machine works.
A boy pulls a box up to 10 m with a force of 5 kgf. Calculate the work done by him.
In the following case write yes, if the work is being done and no if no work is being done.
A coolie standing with a heavy load on his head
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.
A and B are initial and final positions of block.
(i) Calculate the work done by force in moving the block from A to B.
(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’.
A donkey is carrying a load on its back.
