Question

A force of 450 N acts tangentially on a solid 50 kg uniform sphere that has a radius of 40 cm. How many rotations about it’s diametric axis does it take to accelerate uniformly from rest to 6.0 rad



please explain ​

Answer 1

Answer:

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Answer 2

Answer:

Moment of inertia    I=  

2

mr  

2

 

​

=  

2

10×0.2  

2

 

​

=0.2 kgm  

2

 

Angular acceleration   α=  

I

τ

​

=  

0.2

10

​

=50 rad/s  

2

 

Initial angular velocity   w  

i

​

=0

Using   w  

f

​

=w  

i

​

+αt

Or     w  

f

​

=0+50×6=300 rad/s

Explanation: