A body moves in SHM between two-point 20m on the straight line joining the points. If the angular speed of the body is 5 rad/s. Calculate its speed when it is 6m from the center of the motion.

A. 20 m/s
B. 30 m/s
C. 40 m/s
D. 50 m/s

Correct Answer: Option C

C. 40 m/s

Explanation

From two parts 20m apart

a = 10m, x = 6m, A = 5

V = ω √(A²−X²) = 5 √(10²−6²) = 40m/s

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