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A cyclist comes to skidding spot in 10 m...

A cyclist comes to skidding spot in 10 m. If the opposing force on the cycle due to the road is 200 N. The work done by the road on the cycle is

A

2000 J

B

`-2000 J`

C

1000 J

D

`-1000 J`

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TARGET PUBLICATION-LAWS OF MOTION-EXERCISE
  1. Work is always done on a body when

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  2. Under the action of variable force, at any instant the displacement is

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  3. A cyclist comes to skidding spot in 10 m. If the opposing force on the...

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  4. Choose the CORRECT statement.

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  5. If the kinetic energy decreases the work done is .

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  6. Choose the CORRECT statement.

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  7. Which one of the following WRONG?

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  8. According to work-energy theorem, the work done by the net force on a ...

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  9. A ladder 2.5 m long and of weight 150 N has its centre of gravity 1 m ...

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  10. Choose the correct options Choose the WRONG statement.

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  11. The working of rocket is based on the principle of .

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  12. A light and a heavy body have equal K.E. Which body possesses greater ...

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  13. A bullet leaves the rifle of mass one kg and rifle recoils thereby wit...

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  14. A bullet of mass 10 g is fired with a velocity of 100 m/s from a rifle...

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  15. A 30 kg shell is flying at 48 m/s. When it explodes, its one part of 1...

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  16. A bullet of mass 10 g moving with 300 m/s hits a block of ice of mass ...

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  17. Two billiard balls A and B each of mass 0.05 kg moving in opposite dir...

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  18. A shell in its flight, explodes into four unequal parts. Which of the ...

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  19. When two bodies stick together after collision, the collision is said ...

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  20. Which of the following is NOT an example of inelastic collision?

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