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MHT CET202019 Oct 2020Evening ShiftPhysicsMotion in Two DimensionsActual

A body is moving along a circular track of radius 100 ~m with velocity 20 ~m / s . Its tangential acceleration is 3 ~m / s ² , then its resultant acceleration will be

Options

  1. A3 ~m / s ²
  2. B5 ~m / s ²
  3. C4 ~m / s ²
  4. D2 ~m / s ²

Correct answer

B. 5 ~m / s ²

Step-by-step solution

(A) Tangential acceleration a _ t =3 ~m / s ² radial acceleration a _ r = V ² r = (20)² 100 =4 ~m / s ² Total acceleration = a_ r ²+a_ C ² = (4)²+(3)² =5 ~m / s ²

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