Question
Question: A mass of 20 kg moving with a speed of 10m/s collides with another stationary mass of \(5kg.\) As a ...
A mass of 20 kg moving with a speed of 10m/s collides with another stationary mass of 5kg. As a result of the collision, the two masses stick together. The kinetic energy of the composite mass will be
A
600 Joule
B
800 Joule
C
1000 Joule
D
1200 Joule
Answer
800 Joule
Explanation
Solution
⇒ 
K.E. of composite mass
