A 200kg ball on the end of string is swung in horizontal circle with radius of 0.5m . The ball makes revolution every 2second th

Question

4 years ago

13

en what is the speed of ball

1 answer:

kondaur [170] · Answer 1 · 2021-12-30T02:22:56+03:00

The speed of the ball is 1.57 m/s

Explanation:

We start by calculating the angular speed of the ball, which is given by

$\omega = \frac{2\pi}{T}$

where

T is the period of revolution

For the ball in this problem,

T = 2 s

(since the ball makes 1 revolution every 2 seconds)

So, the angular speed is

$\omega = \frac{2\pi}{T}=\frac{2\pi}{2}=\pi rad/s$

Now we can calculate the speed of the ball by using

$v=\omega r$

where

r = 0.5 m is the radius of the circular path

Substituting,

$v=(\pi)(0.5) = 1.57 m/s$

Learn more about angular motion:

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