Question

the speed of wheel of an engine changes from 600rpm to 1200rpm in 5sec. then find its angular acceleration in rad/sec​

Answer 1

Answer: ω=ω

0

+α×t

for t=20sec or 1/3 minutes,

α=1800

From ω

2

=ω

0

2

+2αθ

(1200)

2

=(600)

2

+2×1800×θ

1440000−360000=3600θ

1080000=3600θ

θ=

3600

1080000

=300

Hope it's help you