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An aeroplane of mass M requires a speed ...

An aeroplane of mass M requires a speed v for take off. The length of runway is s and the coefficient of friction between the tyres and the ground is `mu`. Assuming that the plane accelerates uniformly during the take-off, the minimum force required by the engine of the plane for take off is:

A

`M((v^2)/(2s) + mug)`

B

`M((v^2)/(2s) - mu g)`

C

`M((2v^2)/(s) + 2mu g)`

D

`M((2v^2)/(s) - 2mu g)`

Text Solution

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The correct Answer is:
A
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