A moving block having mass m, collides with another stationary block having mass 4m. The lighter block comes to rest after collision. When the initial velocity of the lighter block is v, then the value of coefficient of restitution (e) will be
0.8
0.25
0.5
0.4
As we have learned
Coffecient of Restitution (e) -
- wherein
Ratio of relative velocity after collision to relative velocity before collision.
Let velocity of 4m mass is v after collision
then
e=0.25
Option 1)
0.8
This is incorrect
Option 2)
0.25
This is correct
Option 3)
0.5
This is incorrect
Option 4)
0.4
This is incorrect