Posted by Oisin on Wednesday, August 11, 2010 at 3:10pm.
What is the KE after one minute:
angular acceleration=torque/momentInertia
torque= 250*r
if the flywheel is a solid disk, moment of interia is 1/2 Mass*r^2 (Check that).
angular acceleration= 500/rM
then finally, angular velocity=acceleration*time
wf= 500/rM * 60
and KE= 1/2 I w^2= 1/2 (1/2 Mr^2)(500/rM)^2= and that is it. Check my work and thinking.
Related Questions
physics - A constant force of 20N is applied tangentially to a string wound on ...
Physics - A pulley with a rotational interia of 4.4*10^-3 kg m^2 about its axle ...
Physics - Figure 10-42 shows a uniform disk that can rotate around its center ...
physics - a pulley with rotational inertia of 1.5 times 10 ^-3 kg times m^2 ...
Physics - The flywheel of an old steam engine is a solid homogeneous metal disk ...
Physics - The flywheel of an old steam engine is a solid homogeneous metal disk ...
Hard Physics Problem - The flywheel of an old steam engine is a solid ...
kinematics - An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm ...
kinetics - An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm ...
kinetics - An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm ...
For Further Reading
