Two blocks are sliding on a horizontal frictionless surface with velocities shown in the sketch. Block A has mass 0.500 kg and block B has mass 0.450 kg. The two blocks have a perfectly inelastic collision and stick together after the collision.
Block A with a velocity of 0.200 m/s is moving along the x-axis and block B with a velocity of 0.400 m/s is moving along the y-axis.
(a) What is the speed of the combined blocks after the collision?
(b) What angle does the velocity of the combined blocks make with the +x-axis after the collision?
(c) What is the magnitude of the decrease in kinetic energy of the system of two blocks due to the collision?