Question

A solid cylinder of mass 2 kg and radius 4 cm is
rotating about its axis at the rate of 3 rpm.
The torque required to stop after 21 revolutions is
[NEET-2019
(1) 2 x 10-6 Nm (2) 2 x 10-3 Nm
(3) 12 x 10-4 Nm (4) 2 x 106 Nm

Answer 1

Answer:

2 *10-3 Nm it is right answer

Answer 2

Answer:

$2 \times 10^{ - 6 } \:$