Question

a solid sphere of mass and radius 20kg and 4m is rotating with an angular velocity of 40rad/sec is accelerated uniformly to 60rad/sec in 2sec what is the torque acting on the sphere? (I=0•4MR^2)​

Answer 1

1280Nm

Step-by-step explanation:

torque= I×alpha(angular acceleration)

so Angular acceleration is found by the following process.