Question on: JAMB Physics - 2019
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
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Correct Option: C
At 20m apart,
a = 10m, x = 6m, A = 5
v = ω\(\sqrt{A^2 - X^2}\) = 5\(\sqrt{10^2 - 6^2}\) = 40m/s
v = 40m/s
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