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NEETPhysicsMotion in Two Dimensions

A girl riding a bicycle with a speed of 5 m/s towards the north direction observes rain falling vertically down. If she increases her speed to 10 m/s, the rain appears to meet her at 45° to the vertical. What is the speed of the rain relative to the ground?

Options

  1. A5i
  2. B5j
  3. C5i-5j
  4. D5i+5j

Correct answer

C. 5i-5j

Step-by-step solution

Correct Option is : (C) 5i-5j

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