JAMB - Physics (2019 - No. 95)
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.
20 m/s
30 m/s
40 m/s
50 m/s
ব্যাখ্যা
From two parts 20m apart
a = 10m, x = 6m, A = 5
V = ω\(\sqrt{A^2 - X^2}\) = 5\(\sqrt{10^2 - 6^2}\) = 40m/s
a = 10m, x = 6m, A = 5
V = ω\(\sqrt{A^2 - X^2}\) = 5\(\sqrt{10^2 - 6^2}\) = 40m/s