In an American football game, a 89.8 kilogram fullback running east with a speed of 4.95 m/s is tackled by a 94.4 kilogram opponent running north with a speed of 3.06 m/s.
(a) If the collision is perfectly inelastic, determine the speed and direction of the players just after the tackle.
m/s
° (north ofeast)
(b) Find the mechanical energy lost as a result of the collision.
J