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NEET2011PhysicsMotion in Two DimensionsActual

A particle moves in a circle of radius 5 ~cm with constant speed and time period 0.2 s . The acceleration of the particle is

Options

  1. A25 ~m / s ^2
  2. B36 ~m / s ^2
  3. C5 ~m / s ^2
  4. D15 ~m / s ^2

Correct answer

C. 5 ~m / s ^2

Step-by-step solution

Given, r=5 ~cm =5 10⁻² ~m and T=0.2 s We know that acceleration aligned a & =r ^2 & = 4 ^2 T^2 r & = 4 ^2 5 10⁻² (0.2 )^2 =5 ~ms ⁻² aligned

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