【单选题】A 6 kg bowling ball slides across a slippery waxed floor with a speed of 5 m/s. As it slides, the ball also rotates at a rate of 4 complete revolutions per second. The moment of inertia of the ball is...
【单选题】A billiard ( 台球 ) ball on a billiards table has a momentum kg ⋅ m/s. When a stick strikes the ball, a net force of N acts on the billiard ball for 0.1 s. What is the final momentum of the ball after i...