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A hammer of mass 500 g, moving at 50 {ms}^{-1}, strikes a nail

Science

Class 9

NCERT

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Chapter 9: Force and Laws of Motion

29 questions

Two persons manage to push a motorcar of mass

1200

kg at a uniform velocity along a level road. The same motorcar can be pushed by three persons to produce an acceleration of

0.2

s^{- 2}

. With what force does each person push the motorcar? (Assume that all persons push the motorcar with the same muscular effort.)

A hammer of mass

500 g,

moving at

50 m s^{- 1},

strikes a nail. The nail stops the hammer in a very short time of

0.01 s .

What is the force of the nail on the hammer?

A motorcar of mass

1200

kg is moving along a straight line with a uniform velocity of

90

km/h. Its velocity is slowed down to

18

km/h in

4

s by an unbalanced external force. Calculate the acceleration and change in momentum. Also calculate the magnitude of the force required.

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Chapter 10: Work and Energy

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Chapter 11: Sound

25 questions

Chapter 12: Why do We Fall Ill?

6 questions

Chapter 13: Natural Resourses

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Chapter 14: Improvement in Food Resources

Chapter 15: Gravitation

29 questions

Question

Hard

Solving time: 4 mins

A hammer of mass $500 g,$ moving at $50 m s^{- 1},$ strikes a nail. The nail stops the hammer in a very short time of $0.01 s .$ What is the force of the nail on the hammer?

Views: 6,010 students

Updated on: Sep 7, 2023

Book:

Science (NCERT)

Found 6 tutors discussing this question

Amelia Discussed

A hammer of mass

500 g,

moving at

50 m s^{- 1},

strikes a nail. The nail stops the hammer in a very short time of

0.01 s .

What is the force of the nail on the hammer?

13 mins ago

Discuss this question LIVE

13 mins ago

Text solutionVerified

Given : Mass of the hammer,

M = 500 g

= 0.5 k g

Initial velocity of the hammer,

u = 50

m s^{- 1}

Final velocity of the hammer,

v = 0

Time taken,

t = 0.01 s

Thus change in momentum of the hammer,

Δ P = m v - m u

Δ P = 0 - 0.5 \times 50 = - 25

k g

m s^{- 1}

Force of the nail on hammer,

∣ F ∣ = \frac{∣Δ P ∣}{t} = \frac{25}{0.01} = 2500 N

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Practice more questions from Science (NCERT)

Two persons manage to push a motorcar of mass

1200

kg at a uniform velocity along a level road. The same motorcar can be pushed by three persons to produce an acceleration of

0.2

s^{- 2}

. With what force does each person push the motorcar? (Assume that all persons push the motorcar with the same muscular effort.)

A hammer of mass

500 g,

moving at

50 m s^{- 1},

strikes a nail. The nail stops the hammer in a very short time of

0.01 s .

What is the force of the nail on the hammer?

A motorcar of mass

1200

kg is moving along a straight line with a uniform velocity of

90

km/h. Its velocity is slowed down to

18

km/h in

4

s by an unbalanced external force. Calculate the acceleration and change in momentum. Also calculate the magnitude of the force required.

View all

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Question Text	A hammer of mass $500 g,$ moving at $50 m s^{- 1},$ strikes a nail. The nail stops the hammer in a very short time of $0.01 s .$ What is the force of the nail on the hammer?
Updated On	Sep 7, 2023
Topic	Force and Laws of Motion
Subject	Science
Class	Class 9
Answer Type	Text solution:1 Video solution: 11
Upvotes	1272
Avg. Video Duration	5 min

A hammer of mass $500 g,$ moving at $50 m s^{- 1},$ strikes a nail. The nail stops the hammer in a very short time of $0.01 s .$ What is the force of the nail on the hammer?

Text solutionVerified

Filo tutor solutions (11)

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A hammer of mass 500 g, moving at 50 ms−1, strikes a nail. The nail stops the hammer in a very short time of 0.01 s. What is the force of the nail on the hammer?

Text solutionVerified

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A hammer of mass $500 g,$ moving at $50 m s^{- 1},$ strikes a nail. The nail stops the hammer in a very short time of $0.01 s .$ What is the force of the nail on the hammer?