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A girl of 40 kg mass jumps with a horizo...

A girl of 40 kg mass jumps with a horizontal velocity of 5ms'1 on a stationary trolley. The wheels of the skate are frictionless. What will be the velocity of the girl in the position of start of the trolley. Suppose no unbalanced force is acting in the horizontal direction.(mass of trolley is 3 kg)

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MBD-FORCE AND LAW OF MOTION-Example
  1. A bullet of mass 0.03 kg is fired from a gun of mass 3 kg which leaves...

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  2. From a rifle of mass 5000 g a bullet of 20 g is fired with a velocity ...

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  3. A girl of 40 kg mass jumps with a horizontal velocity of 5ms'1 on a st...

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  4. To bring a body into motion, what is required to be done ?

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  5. Why does an object fall down ?

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  6. Which type of force is required to change the direction of motion of t...

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  7. Why does a body stop after rolling down for some time ?

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  8. How can force of friction be reduced ?

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  9. Which scientist postulated the three laws of motion ?

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  10. By which other name the first law of motion is known ?

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  11. Of heavy and light objects, which have more inertia ?

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  12. What is the S.I unit of momentum ?

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  13. Why is talcum powder sprinkled on carrom board while playing ?

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  14. Why does an athlete run before taking a high jump ?

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  15. What is law of conservation of momentum ?

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  16. A bus and a ball are moving with the same speed. To stop which one wou...

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  17. A vehicle stops on applying brakes. During this activity, what happens...

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  18. 1 kg wt is equal to how many newtons ?

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  19. 1 newton is equal to how many kg wt ?

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  20. On which physical quantity inertia of an object depends ?

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