Question

A wheel is rotating with angular velocity 2 rad/s. It is subjected to uniform angular acceleration 2.0 rad/
(a) How much angular velocity does the wheel acquire after 10 s?
(b) How many complete revolution it makes in this time interval?​

Answer 1

a)

v=u+at

=2+2×10

2+20

22rad/sec

b)

s=ut+1/2at²

=2×10+(1/2)×2×10×10

=20+100

=120 rad

now 1 revolution =2pie radian

therefore no.of revolution needed=120/2pie

Explanation:

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