Q.

The driver of a car moving towards a rocket launching with a speed of 6 ms-1 observed that the rocket is moving with speed of 10 ms-1.The upward speed of the rocket as seen by the stationary observer is nearly

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a

4 ms-1

b

6 ms-1

c

8 ms-1

d

11 ms-1

answer is C.

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Detailed Solution

Suppose the car is moving horizontally along positive x-axis with velocity   . Vertical velocity of the rocket is positive y-axis relative to a stationary observer. .velocity of the rocket relative to the car =
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