• A 1.4-kg bicycle tire with a radius of 33 cm rotates with an angular speed of 155 rpm. Find the angular momentum of the tire,assuming it can be modeled as a hoop.

While punting a football, a kicker rotates his leg about the hip joint. The moment of inertia of the leg is 3.64 kg • m² and its rotational kinetic energy is 152 J. (Enter the magnitudes.) (a) What is the angular velocity of the leg (in rad/s)? rad/s (b) What is the velocity (in m/s) of the tip of the punter's shoe if it is 1.05 m from the hip joint? m/s

A baseball has a mass of 0.15 kg and radius 3.7 cm. In a baseball game, a pitcher throws the ball with a substantial spin so that it moves with an angular speed of 37 rad/s and a linear speed of 51 m/s Assuming the baseball to be a uniform solid sphere, determine the rotational and translational kinetic energies of the ball in joules. КЕ Frotational KEtranslational

A space craft may be modeled as a uniform disk. Suppose the disk shaped craft has a mass of 2500 kg and a radius of 5.67 ngedalla par pplica meters. (a) What is the moment of inertia of the spacecraft? (b) Two rocket engines on opposite sides of the craft each apply an identical tangential force to impart a uniform angular acceleration in the counterclockwise sense. Suppose the craft acceleration from rest to an angular velocity of 1.00 revolutions per second in the counter clockwise sense over a period of 30.0 seconds. What is this final angular velocity in radians per second? (c) What is the angular acceleration of the craft over the period of uniform angular ac- celeration? (d) What net torque is needed to achieve the angular acceleration in part (c)? (e) What force is applied by each rocket engine during the period of uniform angular accel- eration?