Motion in a Plane - Result Question 44

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

(a) 15m/s2

(b) 25m/s2

(c) 36m/s2

(d) 5m/s2

[2011]

Show Answer

Answer:

Correct Answer: 47. (d)

Solution:

  1. (d) Centripetal acceleration ac=ω2r

=(2πT)2r=(2π0.2π)2×5×10−2=5m/s2

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