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The potential energy of a freely falling object decreases prog

Science

Class 9

NCERT

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A mass of

10 k g

is at a point

A

on a table. It is moved to a point

B

. If the line joining

A

and

B

is horizontal what is the work done on the object by the gravitational force? Explain your answer.

The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?

What are the various energy transformations that occur when you are riding a bicycle?

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Question

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Solving time: 3 mins

The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?

Views: 6,060 students

Updated on: Sep 16, 2023

Book:

Science (NCERT)

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The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?

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Text solutionVerified

No, it does not violate the law of conservation of energy.

According to conservation of energy,

E_{T o t a l} = P . E + K . E

Thus for a freely falling object, its potential energy decreases but kinetic energy increases in such a way that its total mechanical energy remains constant.

Moreover, potential energy of a freely falling object is converted into its kinetic energy.

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Practice more questions from Science (NCERT)

A mass of

10 k g

is at a point

A

on a table. It is moved to a point

B

. If the line joining

A

and

B

is horizontal what is the work done on the object by the gravitational force? Explain your answer.

The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?

What are the various energy transformations that occur when you are riding a bicycle?

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Question Text	The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?
Updated On	Sep 16, 2023
Topic	Work and Energy
Subject	Science
Class	Class 9
Answer Type	Text solution:1 Video solution: 5
Upvotes	590
Avg. Video Duration	6 min

The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?

Text solutionVerified

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