A rotating wheel has a kinetic energy of 225 J when it is rotating at an angular speed of 30 rad/s. What is its moment of inertia?

The angular position of a point on a rotating wheel is given by θ = 8.41 + 8.45t2 + 3.81t3, where θ is in radians and t is in seconds. At t = 0, what are (a) the point's angular position and (b) its angular velocity? (c) What is its angular velocity at t = 4.32 s? (d) Calculate its angular acceleration at t = 2.38 s. (e) Is its angular acceleration constant?

A disk with a moment of inertia of 7.3 kg m^2 spins at 19 rad/s about its center axis.What is its rotational kinetic energy?

A wheel with a moment of inertia of 25 kg m2 is subjected to a torque of 100 Nm. What angular acceleration is produced?

How much time elapses while it turns through 300 radians? O 11.0 s O 12.7 s O 15.8 s O none of the above

A 6.76 kg disk makes 4.00 rev starting from rest. Calculate the radius of the disk if it has a rotational kinetic energy of 9.89 J and an angular acceleration of 0.98 rad/s?. (а) 0.345 m (b) 0.864 m (c) 0.216 m (d) 0.122 m

A soccer player extends her lower leg in a kicking motion by exerting a force with the muscle above the knee in the front of her leg. She produces an angular acceleration of 30.00 rad/s and her lower leg has a moment of inertia of 0.750 kg.m. What is the force exerted by the muscle if its effective perpendicular lever arm is 1.90 cm?

A top has a moment of inertia of 11.8 kg-m^2. The top is spinning at 68 rpm. How much rotational kinetic energy (in joules) does the top have?

A constant torque of 3.4 N.m is applied to an object , which undergoes 28 revolutions. Calculate the work done in Joules, with a single digit precison. Your Answer: Answer

a 7kg solid sphere rolls without slipping on a horizontal surface with its center of mass moving at 5m/s. what is the ratio between the translational and the rotational kinetic energies?