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The work done on an object does not depend on ______. - Science and Technology

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प्रश्न

The work done on an object does not depend on ______.

पर्याय

  • displacement 

  • applied force

  • initial velocity of the object

  • the angle between force and displacement.

MCQ
रिकाम्या जागा भरा

उत्तर

The work done on an object does not depend on the initial velocity of the object.

Explanation:

W = Fs cosθ

According to the formula of work, we come to know that the work done on an object does not depend on the initial velocity of the object.

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पाठ 2: Work and Energy - Exercises [पृष्ठ २८]

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बालभारती Science and Technology [English] 9 Standard Maharashtra State Board
पाठ 2 Work and Energy
Exercises | Q 3. d. | पृष्ठ २८

संबंधित प्रश्‍न

Power spent by a body depends on the time for which it does work.


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A man lifts a mass of 20 kg to a height of 2.5 m. Assuming that the force of gravity on 1 kg mass is 10 N, find the work done by the man.


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What is the work done against gravity when a body is moved horizontally along a frictionless surface?


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Can every force produce work?


Complete the following sentences:
The SI unit of work is ....... and of power is .......


Complete the following sentences:

 1 H.P. = ........ W.


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A body of mass 2 kg is moving with a speed of 20 ms-1. What is its K.E.?

What are the factors on which P.E. of a body depends?

Is P.E. a vector or a scalar quantity?

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(i) How much force would be needed to lift a drum into the truck directly/without using the plank? (Take g = 10 m/s2)

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(v) The driver has to stop at the factory gates. What happens to the kinetic energy of the truck?


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