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Nikolay [14]
2 years ago
14

A DVD with a radius of 6 centimeters rotates at a speed of 243 revolutions per minute. Find the liner speed in centimeters per s

econd.
Mathematics
1 answer:
saul85 [17]2 years ago
5 0

Answer:

152.7 cm/s

Step-by-step explanation:

The radius of DVD, r = 6 cm

The angular speed of DVD, \omega=243\ rev/min=25.45\ rad/s

We need to find the linear speed of the DVD.

The relation between linear speed and angular speed is given by :

v=r\omega\\\\v=0.06\times 25.45\\\\v=1.527\ m/s

or

v = 152.7 cm/s

So, the linear speed of the DVD is 152.7 cm/s.

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