Work Energy And Power Question 166
Question: A metal ball of mass 2 kg moving with a velocity of 36 km/h has an head on collision with a stationary ball of mass 3 kg. If after the collision, the two balls move together, the loss in kinetic energy due to collision is [CBSE PMT 1997; AIIMS 2001]
Options:
A) 40 J
B) 60 J
C) 100 J
D) 140 J
Show Answer
Answer:
Correct Answer: B
Solution:
By law of conservation of momentum
therefore
Loss in K.E.
