Question

a fan initially at rest rotates 12 times per second .find the angular a​

Answer 1

Step-by-step explanation:

For circular angular motion, the formula for angular displacement θ and angular acceleration α is

θ=ωt+

2

1

αt

2

orθ=0+

2

1

αt

2

where ω= initial velocity

or θ=

2

1

×(2)(10)

2

θ=100 radians

2π radian are covered in 1 revolution.

∴ 1 radian is covered is covered in

2π

1

revolution

or 100 radian are covered in

2π

100

revolution.

∴ Number of revolution=

3.14

50

=16