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Manipal MET2019PhysicsMotion in Two Dimensions

The driver of a car moving towards a rocket launching pad with a speed of 6 m / s observes that the rocket is moving with speed of 10 ~m / s . The upward speed of the rocket as seen by the stationary observer is

Options

  1. A4 ~m / s
  2. B6 ~m / s
  3. C8 ~m / s
  4. D11 ~m / s

Correct answer

D. 11 ~m / s

Step-by-step solution

Observed speed, aligned v & = (10)^2+(6)^2 = 100+36 & = 136 11 ~m / s aligned

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