Q. Two 3.5 kg bodies, A and B, collide. The velocities before the collision are A = (21 + 30) m/s and B = (-34 + 11) m/s. After the collision, ′A = (-4.5 + 16) m/s. What are (a) the x-component and (b) the y-component of the final velocity of B? (c) What is the change in the total kinetic energy (including sign)?

Q. A 65.00 kg ice skater moving to the right with a velocity of 4.40 m/s throws a .1 kg snowball to the right with a velocity of 40.0 m/s relative to the ground. a. what is the velocity of the ice-skater after throwing the snowball? Disreguard the friction between the skates and the ice. b. a second skater initially at rest with a mass of 60 kg catches the snowball. What is the velocity of the second skater after catching the snowball in a perfectly inelastic collision?