Work Energy And Power Question 39
Question: A bomb of 12 kg explodes into two pieces of masses 4 kg and 8 kg. The velocity of 8kg mass is 6 m/sec. The kinetic energy of the other mass is [MNR 1985; CPMT 1991; Manipal MEE 1995; Pb. PET 2004]
Options:
A) 48 J
B) 32 J
C) 24 J
D) 288 J
Show Answer
Answer:
Correct Answer: D
Solution:
As the initial momentum of bomb was zero,
therefore after explosion two parts should possess numerically equal momentum i.e.
therefore
therefore
Kinetic energy of other mass A, =
