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A bullet of mass 100 {~g} moving with a velocity of 100 {~m} {

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Solving time: 3 mins

A bullet of mass $100 g$ moving with a velocity of $100 m s^{- 1}$ is stopped by a plank. If the bullet travels a distance of $10 cm$ in the plank before it comes to rest, find the average force exerted by the plank.

100 N

1000 N

2500 N

5000 N

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Camila Discussed

A bullet of mass

100 g

moving with a velocity of

100 m s^{- 1}

is stopped by a plank. If the bullet travels a distance of

10 cm

in the plank before it comes to rest, find the average force exerted by the plank.

8 mins ago

Discuss this question LIVE

8 mins ago

Text solutionVerified

According to Work energy theorem,

Δ K =

work done

F \times 0.1 = \frac{1}{2} \times 0.1 (100)^{2}

= \frac{1 0 ^{4} \times 0.1}{2}

= \frac{1 0 ^{4}}{2} = 5000

F = 5, 000 N

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Question Text	A bullet of mass $100 g$ moving with a velocity of $100 m s^{- 1}$ is stopped by a plank. If the bullet travels a distance of $10 cm$ in the plank before it comes to rest, find the average force exerted by the plank.
Topic	Work and Energy
Subject	Science
Class	Class 9
Answer Type	Text solution:1
Upvotes	138

A bullet of mass $100 g$ moving with a velocity of $100 m s^{- 1}$ is stopped by a plank. If the bullet travels a distance of $10 cm$ in the plank before it comes to rest, find the average force exerted by the plank.

Text solutionVerified

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A bullet of mass 100 g moving with a velocity of 100 m s−1 is stopped by a plank. If the bullet travels a distance of 10 cm in the plank before it comes to rest, find the average force exerted by the plank.

Text solutionVerified

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A bullet of mass $100 g$ moving with a velocity of $100 m s^{- 1}$ is stopped by a plank. If the bullet travels a distance of $10 cm$ in the plank before it comes to rest, find the average force exerted by the plank.