A moving mass of 8 kg collides elastically with a stationary mass of 2 kg. If E be the initial kinetic energy of the moving mass, the kinetic energy left with it after the collision will be

Q: A moving mass of 8 kg collides elastically with a stationary mass of 2 kg. If E be the initial kinetic energy of the moving mass, the kinetic energy left with it after the collision will be

(a) 0.80 E

(b) 0.64 E

(c) 0.36 E

(d) 0.08 E

Ans: (c)