"With what angular velocity should a 20 m long cord be rotated such that tension in it, while reaching the highest point, is zero"
Added by Barry B.
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Step 1: The formula for angular velocity (omega) is given by omega = sqrt(g/R), where g is the acceleration due to gravity and R is the radius of rotation. Show more…
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With what angular velocity should a $20 \mathrm{~m}$ long cord be rotated such that tension in it, while reaching the highest point, is zero (a) $0.5 \mathrm{rad} / \mathrm{sec}$ (b) $0.2 \mathrm{rad} / \mathrm{sec}$ (c) $7.5 \mathrm{rad} / \mathrm{sec}$ (d) $0.7 \mathrm{rad} / \mathrm{sec}$
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a 20 g bead is attached to a light 120 cm long string. This bead moves in a horizontal circle with a constant speed of 1.5 m/s. what is the tension in the string if the angle is 25 degrees
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