Page 88 - eEISBN FINALIZE

1 −

,  = ( )

−
, = , ℎ

,  = = 

Example 1

At one moment, a point on the edge of a wheel with a diameter of 40 mm is moving with linear

-2
-1
velocity of 4 ms and the linear acceleration of 0.62 ms . Calculate:
i. The angular acceleration of wheel.

ii. angular velocity

Solution.

i. Angular acceleration,  =

0.62
 =
0.02

 = −2

ii. Angular velocity,  =

4
 =
0.02

 = −1

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