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A stone in a sling spins in uniform circular motion. If the stone makes 2 revolutions in 3.41 seconds, what is the angular speed of the ball (in radians/s!)?

A stone in a sling spins in uniform circular motion. If the stone makes 2 revolutions-example-1
User Sluther
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1 Answer

13 votes
13 votes

First we need to change the revolutions

1 rev= 2pi

therefore

2 rev =4pi

The formula of angular velocity is


\omega=(\theta)/(t)

where theta is the displacement in radians and t is the time in our case

theta=4pi

t=3.41


\omega=(4\pi)/(3.41)=3.69\text{ rad/s}

ANSWER

3.69 rad/s

User Jdno
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