4.2 Problems
141
Fig. 4.4
4.21 Two unequal masses m 1 and m 2 (m 1 > m 2 ) are suspended by a light string over
a pulley of mass M and radius R as in Fig. 4.5. Assuming that slipping does
not occur and the friction of the axle is negligible, (a) find the acceleration
with which the masses move; (b) angular acceleration of the pulley; (c) ratio
of tensions T 1 /T 2 in the process of motion.
Fig. 4.5
4.22 Two wheels of moment of inertia I 1 and I 2 are set in rotation with angular speed ω 1 and ω 2 . When they are coupled face to face they rotate with a
141
Fig. 4.4
4.21 Two unequal masses m 1 and m 2 (m 1 > m 2 ) are suspended by a light string over
a pulley of mass M and radius R as in Fig. 4.5. Assuming that slipping does
not occur and the friction of the axle is negligible, (a) find the acceleration
with which the masses move; (b) angular acceleration of the pulley; (c) ratio
of tensions T 1 /T 2 in the process of motion.
Fig. 4.5
4.22 Two wheels of moment of inertia I 1 and I 2 are set in rotation with angular speed ω 1 and ω 2 . When they are coupled face to face they rotate with a