In a ballistic pendulum lab you got the data as mentioned below: Mass of the bullet (m) = 69.6 g Mass of pendulum bob (M) = 277.4 g Velocity of the bullet after being fired from gun = 7.0 m/s. Calculate the loss in KE in the inelastic collision. [Hint : first use the formula for conservation of linear momentum to get the velocity (after collision) of bullet-pendulum (m+M) system, then calculate KE ] 1.365 J 13.68 mJ 168.8 mJ 1.688 J