physics help?

1 ⤊

A centrifuge has a rotational inertia of 7.24 10-3 kg ·m2. How much energy must be supplied to bring it from rest to 535 rad/s?

2006-10-20 13:43:30 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Physics

1 answers

The kinetic energy of rotation is .5*I*w^2, where I = moment of itertia an w = angular velocity. In your problem w = 535 sec^-1, and I =7.24*10^-3. This is the amount of energy needed to stop it.

2006-10-20 14:34:50 · answer #1 · answered by gp4rts 7 · 1⤊ 0⤋