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An engine pulls a train over 5 km of dis...

An engine pulls a train over 5 km of distance by applying a force of `5xx10^6` Newton. Calculate the work done by it .

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  2. State of law of conservation of mass.

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  4. A man weighing 60kg goes up a staircase 5 m high in 20 sec. Calculate...

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  6. A light body moving in a straight line with a velocity of 10 ms^(-1) m...

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  7. What is conserved in the elastic collision of two bodies ?

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  8. A light body and a heavy body have, same kinetic energy. Which one wil...

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  9. A particle of mass 6 kg moves accordings to the law x=0.2 t^2-0.02 t^3...

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  10. State the law of conservation of energy and the law of conservation of...

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  11. A light body and a heavy body have, same kinetic energy. Which one wil...

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  12. A very heavy body moving with a velocity of 10 ms^(-1)makes a head on ...

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  13. Two bodies of mass 1 kg and 2 kg have equal momentum. The ratio of the...

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  14. What is perfectly elastic collision ?

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  15. A very heavy body moving with a velocity of 10 ms^(-1)makes a head on ...

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  16. Two bodies of mass 1 kg and 2 kg have equal momentum. The ratio of the...

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  17. What are conservative forces ? Give example .

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  18. A bomb of mass 9 kg explodes into two pieces of mass 3 kg and 6 kg. Th...

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  19. A body weighs one Newton at the surface of the earth. What will be it’...

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