- #1
MechaMZ
- 128
- 0
Every rotational motion have torque? Pls come and take a look..
Are torque exsiting at every rotational motion?
how about free fall or wheel rotating without any force act on it??
Question:
A 0.8m diameter, 50kg flywheel with a radius of gyration of 0.283m must be braked from 60 rpm to rest in 2s. calculate the tangential force required to accomplish this braking action.
angular acceralation = -3.142rad/s sq
I = 4.004kgm sq
torque equation on ratational motion of the flywheel is :
Torque - ( T x 0.4m ) = I x (angular acceleration) < T is tangential force >
0 - ( T x 0.4 ) = 4.004 ( -3.142 )
-0.4T = -12.58
T = 31.4 N
why the torque here is equal to zero??
anyone can help and explain...
ur reply is greatly appreciated... thankzzz
Are torque exsiting at every rotational motion?
how about free fall or wheel rotating without any force act on it??
Question:
A 0.8m diameter, 50kg flywheel with a radius of gyration of 0.283m must be braked from 60 rpm to rest in 2s. calculate the tangential force required to accomplish this braking action.
angular acceralation = -3.142rad/s sq
I = 4.004kgm sq
torque equation on ratational motion of the flywheel is :
Torque - ( T x 0.4m ) = I x (angular acceleration) < T is tangential force >
0 - ( T x 0.4 ) = 4.004 ( -3.142 )
-0.4T = -12.58
T = 31.4 N
why the torque here is equal to zero??
anyone can help and explain...
ur reply is greatly appreciated... thankzzz
Last edited: