Question

The radius of circle 50cm,the body revolves with constant angular speed 20 rad/so. Calculate linear speed of the body

Answer 1

Answer: 1000 cm/s

Explanation:

Linear speed of the body = angular speed of the body × radius of the circle

∴ linear speed = 50 × 20 cm/s

                         = 1000 cm/s  

Hence, the linear speed is 1000 cm/s = 10m/s

Answer 2

The linear speed of the body is 10 m/s.

Explanation:

Given that,

Radius = 50 cm

Angular speed = 20 rad/s

We need to calculate the linear speed of the body

Using formula of linear speed

$v = r\omega$

Where, v = linear speed

r = radius

$\omega$ = angular velocity

Put the value in to the formula

$v=50\times10^{-2}\times20$

$v=10\ m/s$

Hence, The linear speed of the body is 10 m/s.

Learn more :

Topic : linear velocity

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