D) -80 J
Q2) Find the work required for stopping 0.3 kg ball moving at 5 m/s ?

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

Most short-period comets do not have randomly oriented orbits because

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to: