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A 30gm bullet initially at 120m//s penet...

A `30gm` bullet initially at `120m//s` penetrates `12cm` into a wooden block. The average block. The average resistance exerted by the wooden block is.

A

31250 N

B

41250 N

C

31750 N

D

3040 N

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SL ARORA-Laws of Motion-Exercise
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  2. A ball of mass 25 g, moving with a velocity of 2 ms^(-1) is stopped wi...

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  3. A 30gm bullet initially at 120m//s penetrates 12cm into a wooden block...

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  4. A body of mass 8kg is moved by a force F = (3x)N, where x is the disat...

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  5. A body of mass 5 kg statrs from the origin with an initial velocity ve...

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  7. The effective acceleration of a body, when thrown upwards with acceler...

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  8. Three different objects of masses m(1) , m(2) and m(2) are allowed to ...

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  9. Dimensions of impulse are :

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  10. The momentum is most closely related to

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  11. A particle is moving in a circle with uniform speed v . In moving fro...

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  12. If two balls each of mass 0.06 kg moving in opposite directions with s...

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  13. A ball strikes a bat with velocity v. The ball has mass m and after st...

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  14. A body of mass 2 kg moves with an acceleration 3ms^(-2). The change in...

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  15. A body is initially at rest on a smooth surface. A force 20 F,whose ti...

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  16. A batsman deflects a ball by an angle of 45^(@) without changing its i...

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  17. A bullet is fired from a gun. The force on the bullet is given by F=60...

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  18. A body is at rest on the surface of the earth. Which one among the fol...

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  19. The dimensions of action are

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  20. A student unable to answer a question on Newton's laws of motion attem...

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