Question

A body of mass $40kg$ having velocity $4m/s$ collides with another body of mass $60kg$ having velocity $2m/s$. If the collision is inelastic, then loss in kinetic energy will be

• A. 440 J
• B. 392 J
• C. 48 J
• D. 144 J

Answer 1

Answer: (C)

48 J

Answer 2

Loss of K.E. in inelastic collision

$$$` = \frac{1}{2}\frac{2400}{100}4 = 48$J.