Amass of m1= 3.50 kg is moving toward the right with a velocity of v1= 7.70 m/sec when it collides with a second mass ofm2= 5.50 kg. after the collision the second mass bounces off to the right of the original path of motion of the first ball at anangle ofêb= 27.65owith a speed of v4= 5.16 m/sec.
a. what will be the magnitude of the final velocity v3of the first mass after the collision?
b. what will be the direction of motion êa of the first ball after the collision?
c. how much energy was lost or gained in this collision?
d. was this collision elastic or inelastic? explain