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If the force on a rocket, moving with a ...

If the force on a rocket, moving with a velocity of `300ms^(-1)` is 210 N, then the rate of combustion of the fuel is

A

12.25kg/2

B

0.7kg/s

C

1.4kg/s

D

2.7kg/s

Text Solution

Verified by Experts

The correct Answer is:
A

`(dm)/(dt)=(210)/(300)=0.7kg//s`
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ALLEN-NEWTONS LAWS OF MOTION-EXERCISE-II
  1. The coefficient of static friction between two surfaces depend on

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  2. For a Rocket propulsion velocity of exhaust gases relative to rocket i...

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  3. If the force on a rocket, moving with a velocity of 300ms^(-1) is 210 ...

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  4. In the fig. mass M=10gm. Is placed on an inclined plane. In order to k...

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  5. A machine gun fires bullets of 50gm at the speed of 1000m/sec. If an a...

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  6. The mechanical advantage of a wheel axle is 5 what will be thereforce ...

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  7. A body of mass 100g is sliding on a inclined plane with an inclination...

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  8. As shown in figure a monkey of 20g mass is holding a light rope that p...

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  9. A bird is sitting on the floor of a wire cage and the cage is in the h...

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  10. Two bodies A (30 kg) and B (50 kg) tied with a light string are placed...

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  11. Weight is defined as:-

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  12. A string of length L and mass M is lying on a horizontal table. A forc...

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  13. A man is standing on a sparing platform, Reading of spring balaance is...

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  14. A rocket of mass 120kg. Is fired in the gravity free space is ejected ...

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  15. If 100N force is applied to 10kg. block as shown in diagram then accel...

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  16. If a ladder is not in balance against a smooth vertical wall, then it ...

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  17. A blocks is dragged on a smooth plane with the help of a rope which mo...

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  18. In the arrangement shown in figure, the ends P and Q of an unstretchab...

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  19. A trolley T of mass 5kg on a horizontal smooth surface is pulled by a ...

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  20. A weightless inextensible rope rests on a stationary wedge forming an ...

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