(ii) a 0.72-m-diameter solid sphere can be rotated about an axis through its center by a torque of 10.8 m • n which accelerates it uniformly from rest through a total of 160 revolutions in 15.0 s. what is the mass of the sphere

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?