Here are the questions again.
If the steel disk has mass of 200 kg and a radius of 2 meters you can make it spin by applying a force to the rim. This torque increases the angular momentum of the disk. Suppose the force is 20 Newtons. How long would you have to apply it to get the wheel...
I= 520 kg*m (Due to taking the initial mass (200) and adding 60 to it due to us jumping on the merry go round) so...I=(1/2)(260)(2)^2
40=520a SO a=.077
SO .077=.55/t; Therefore T=6.75 sec.
Where did i go wrong? or misunderstand??
So with the addition of the 60kg would that then make the time be 6.75 rad/s instead of 5.2 rad/sec, which would make the rate of spin be slower!?
right?
So with the addition of the 60kg would that then make the time be 6.75 rad/s instead of 5.2 rad/sec, which would make the rate of spin be slower!?
right?