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A packet of weight w is dropped with the...

A packet of weight w is dropped with the help of a parachute and on strinking the ground comes to rest with retardation equal to twice the acceleration due to gravity. The foce exerted on the ground is

A

W

B

2 W

C

3 W

D

4 W

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-LAWS OF MOTION-EXERCISE - II
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  2. A ball of mass m is thrown vertically upward from the ground and reach...

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  3. A packet of weight w is dropped with the help of a parachute and on st...

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  4. A person of 60 Kg mass is in a lift which is coming down such that the...

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  5. A man of 50 kg is standing at one end on a boat of length 25 m and mas...

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  6. A wedge shaped block A' of mass M is at rest on a smooth horizontal su...

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  7. A stationary shell explodes into two fragments, having masses in the r...

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  8. A particle of mass 1 kg is thrown vertically upward with speed 100 m/s...

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  9. A shell is fired from a cannon with a velocity V at an angle theta wit...

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  10. A gun mounted on the top of a moving truck t is aimed in the backward ...

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  11. A gun of mass M fires a bullet of mass m with a Kinetic energy E. The ...

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  12. A gun of mass M fires a bullet of mass m with a velocity v relative to...

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  13. A shell of mass 0.01 kg fired by a gun of mass 10 kg. If the muzzle sp...

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  14. A rocket consumes 20 kg fuel per second. The exhaust gases escape at a...

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  15. A rocket of initial mass 6000kg ejects mass at constant rate of 200 kg...

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  16. A rocket of mass 20kg has 180kg fuel. The exhaust velocity of the fuel...

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  17. Two 10 kg bodies are attached to a spring balance as shown in figure. ...

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  18. A mass 'M' is suspended by a rope from a rigid support. It is pulled h...

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  19. In the given arrangement, for the system to remain under equilibrium, ...

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  20. A uniform rope of length 5m is on a smooth horizontal surface. It is b...

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