a 0.72 m diameter solid sphere can be rotated about an axis through its center by...
a 0.72 m diameter solid sphere can be rotated about an axis through its center by a torque of 10.8 nm which accelerates it uniformly from rest through a total of 180 revolutions in 15 s what is the mass of the sphere
Homework Answers
using 2nd equation of angular motion
d = 0.5 at^2
180* 2* pi = 0.5 a * 15^2
a = 10.048 rad/s^2
now as we knw
T = I a
10.8 = (2/5)m 0.36^2* 10.048
m = 20.7338 kg
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comment in case any doubt, will reply for sure.. goodluck
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