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MHT CET2019Evening ShiftPhysicsMotion in Two DimensionsActual

In U.C.M., when time interval δ → 0 , the angle between change in velocity δ v and linear velocity (v) will be

Options

  1. A0 o
  2. B90 o
  3. C180 o
  4. D45 o

Correct answer

B. 90 o

Step-by-step solution

The direction of change in velocity δ v is given by ϕ = 180 o - θ 2 = 90 o - θ 2 …. (i) This can be shown graphically as For small interval i.e. δ t → 0 , then angle between v 1 and v 2 is very small i.e., θ ≈ 0 o . So, from Eq. (i) we get ϕ = 90 o

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