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The driver of a car moving towards a roc...

The driver of a car moving towards a rocket launching pad with a speed of 6 m `s^(-1)` observed that the rocket is moving with speed of 10 m `s^(-1)`. The upward speed of the rocket as seen by the stationery observer is nearly

A

4 m `s^(-1)`

B

6 m `s^(-1)`

C

8 m `s^(-1)`

D

11 m `s^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
Observed speed, `v = sqrt((10)^(2) + (6)^(2)) = sqrt(136)`
` = 11 ms^(-1)`
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