Question

two blocks of masses m1 and m2 are connected by a massless string that at passes over a wheel of mass m as shjown above the string does not slip on the wheel and exerts forces t1 and t2 on the blocks when the wheel is released from rest in the position shown it undergoes an angular acceleration and rotates clockwise which of the following statements about t1 and t2 is correct

Answer 1

Based on the provided information, the statements about t1 and t2 which is correct is T2 > T1 because an unbalanced clockwise torque is needed to accelerate the wheel clockwise. (Option B)

Torque refers to a measure of the force that can cause an object to rotate about an axis.  It is the rotational equivalent of linear force. Similar to linear force which causes an object to accelerate in linear kinematics, torque causes an object to acquire angular acceleration. Hence, the angular momentum of the body refers to the moment of momentum about the axis of rotation. In the given figure, when the wheel is released from rest and rotates clockwise from left to right, the torque T2 must be greater than torque T1 as the unbalanced clockwise torque is needed to accelerate the wheel clockwise.

Note: The question is incomplete as it is missing options which are a. T1 = T2 because both blocks have the same acceleration. b. T2 > T1 because an unbalanced clockwise torque is needed to accelerate the wheel clockwise. c. T1 > T2 because m1 is farther from the wheel than m2. d. T1 = T2 because the wheel has mass. e. T1 > T2 because m1 accelerates upward.

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