A 2 kg block on a rough surface (mu_k = 0.2) is connected to a 1 kg hanging mass. The system is released from rest. After 2 s, the string is cut. How much farther does the 2 kg block move? (g = 10 m/s^2)

A bomb at rest explodes into 3 pieces. Two pieces of equal mass fly off perpendicular to each other with velocity 30 m/s each. If each piece has mass 1 kg and the third piece has mass 2 kg, velocity of the third piece is:

A bullet of mass 10 g travelling at 300 m/s penetrates 10 cm into a wooden block and stops. The average resistive force is:

A body slides down a rough incline of angle 45 degrees. If mu_k = 1/sqrt(2), the acceleration is:

A body of mass 10 kg is placed on a smooth incline of angle 30 degrees. The force parallel to the incline required to keep it stationary is: