Question

a flywheel is speeded up uniformly to 300 rpm in 100 seconds from rest calculate the angular acceleration and the linear acceleration of a point 10 cm from the axis
​

Answer 1

Explanation:

ω

f

=ω

i

+at

ω

f

= final angular velocity

ω

i

= initial angular velocity

ω= angular acceleration, t=time

Insorting values we get

100=300+9×2

⇒a=−100

min

2

relation

[-denotes reterdation]

As each rotation consists of 2π radian

So a=−100×2x

(min)

2

radian

=−200π

(min)

2

radian