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A mass of 1 kg is thrown up with a veloc...

A mass of 1 kg is thrown up with a velocity of 100 m/s. After 5 seconds. It explodes into two parts. One parts of mass 400 g comes down with a velocity 25 m/s Calaculate the velocity of other parts:

A

`40 m/s uparrow`

B

`40 m/s downarrow`

C

`100 m/s uparrow`

D

`60 m/s uparrow`

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SL ARORA-Work, Energy and power-EXERCISE
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  2. A bomb of mass 30 kg at rest explodes in to two pieces of masses 18 kg...

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  3. A mass of 1 kg is thrown up with a velocity of 100 m/s. After 5 second...

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  4. A ball of mass2 kg and another of mass 4 kg are dropped together from ...

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  5. A stationary partical explodes into two partical of a masses m(1) and ...

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  6. A particle of mass m1 is moving with a velocity v(1) and another parti...

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  7. Two bodies of masses m and 4 m are moving with equal kinetic energies....

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  8. Two bodies with kinetix energies in the ratio of 4 : 1 are moving with...

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  9. The velocity acquired by a mass m in travelling a certain distance d s...

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  10. If kinetic energy of a body is increased by 300%, then percentage chan...

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  11. A particle is projected at 60(@) to the horizontal with a kinetic ene...

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  14. A block of mass 10 kg, moving in x-direction with a constant speed of ...

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  15. A ball is thrown vertically downwards from a height of 20m with an int...

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  17. 300J of work is done in slinding a 2 kg block up an inclined plane of ...

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  19. Two springs A and B (k(A)=2k(B)) are stretched by applying forces of e...

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  20. A mass of 0.5 kg moving with a speed of 1.5 m/s on a horizontal smooth...

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