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A mass of 10 kg is at a point A on a table. It is moved to a p

Science

Class 9

NCERT

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Chapter 10: Work and Energy

23 questions

Certain force acting on a

20 k g

mass changes its velocity from

5 m s^{- 1}

2 m s^{- 1}

. Calculate the work done by the force.

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?

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Chapter 14: Improvement in Food Resources

Chapter 15: Gravitation

29 questions

Question

Easy

Solving time: 3 mins

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.

Views: 5,792 students

Updated on: May 2, 2023

Book:

Science (NCERT)

Found 4 tutors discussing this question

Scarlett Discussed

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.

11 mins ago

Discuss this question LIVE

11 mins ago

Text solutionVerified

Force of gravity and displacement are perpendicular to each other.

Hence, work done is zero.

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Practice more questions from Science (NCERT)

Certain force acting on a

20 k g

mass changes its velocity from

5 m s^{- 1}

2 m s^{- 1}

. Calculate the work done by the force.

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?

View all

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Question Text	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.
Updated On	May 2, 2023
Topic	Work and Energy
Subject	Science
Class	Class 9
Answer Type	Text solution:1 Video solution: 12
Upvotes	1233
Avg. Video Duration	3 min

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.

Text solutionVerified

Filo tutor solutions (12)

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A mass of 10 kg 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.

Text solutionVerified

Filo tutor solutions (12)

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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.