Question

1. A ballet dancer spins about a vertical axis at
60rpm with his arms closed. Now he stretches
his arms such that M.I. increases by 50%.new speed of revoulotion is​

Answer 1

Explanation:

We can say I1W1=I2W2

SO. I1*60 = 3/2I1*W2

THIS WILL GIVE ANSWER... 40rpm will be next angular velocity..( conservation of momentum)