y can slide along the rod. They are initially held by clips at positions 0.05 cm on each side of the center and the system is rotating at 1

In the figure, a 7.90 g bullet is fired into a 0.430 kg block attached to the end of a 0.140 m nonuniform rod of mass 0.578 kg. The block-rod-bullet system then rotates in the plane of the figure, about a fixed axis at A. The rotational inertia of the rod alone about A is 0.0761 kg·m2. Treat the block as a particle. (a) What then is the rotational inertia of the block-rod-bullet system about point A? (b) If the angular speed of the system about A just after impact is 3.64 rad/s, what is the bullet's speed just before impact?

A 4kg ball with a 0.45-meter radius is initially at rest begins to roll and accelerate at a uniform rate to a velocity of 10 rad/s in 5 seconds. The rotational inertia of the ball is 0.243 kg*m^2. Calculate the magnitude of the torque on the ball. Answer must use the correct SI units.

A uniform, 0.0300 kg rod of length 0.400 m rotates in a horizontal plane about a fixed axis through its center and perpendicular to the rod. Two small rings, each with mass 0.0150 kg, are mounted so that they can slide without friction along the rod. They are initially held by catches at positions 0.0500 m on each side of the center of the rod, and the system is rotating at 48.0 rev/min. With no other changes in the system, the catches are released, and the rings slide outward along the rod and fly off at the ends. Part A What is the angular speed of the system at the instant when the rings reach the ends of the rod? Express your answer in revolutions per minute. Wsystem = Submit Part B Wrod = V ΑΣΦ What is the angular speed of the rod after the rings leave it? Express your answer in revolutions per minute. VE ΑΣΦ Submit Request Answer Request Answer ? ? rev/min rev/min