. a mass of 0.5kg moving with a speed of 2m/s hits another mass lkg moving in the same direction with a speed of 1m/s. kinetic energy of the centre of mass is (

. A mass of 0.5kg moving with a speed of 2m/s hits another mass lkg moving in the same direction with a speed of 1m/s. Kinetic energy of the centre of mass is (a) 4/3 J (c) 0J (b) 3/4 J (d) 8/3 J Slide 45 of 55