Question 616
A body has rotational kinetic energy of 100 J and moment of inertia 2 kg m². What is its angular velocity?
Question 617
What is the work done by a constant torque τ in rotating a body through angle θ?
Question 618
A wheel of radius 0.5 m rotates through 4 radians. How much cord is unwound?
Question 619
What is the moment of inertia of a point mass m at distance r from the axis of rotation?
Question 620
If a body rotates with constant angular acceleration, which of the following is true?