A square plate of mass 120 g and edge 5.0 cm rotates about one of the RT 11 DPP Q36

Описание: A square plate of mass 120 g and edge 5.0 cm rotates about one of the edges as shown in figure. If it has a uniform angular acceleration of 0.2 rad/s2, what torque
acts on the plate ?
(a) 0.5 × 10-5 N-m
(b) 1 × 10-5 N-m
(c) 2.0 × 10-5 N-m
(d) 4 × 10-5 N-m

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