A particle of mass 
moving with velocity 
makes an elastic one-dimensional collision with a stationary particle of mass 
. They are in contact for a brief time 
. Their force of interaction increases from zero to 
linearly in time 
and decreases linearly to zero in further time 
. The magnitude of 
is
Text Solution
Verified by ExpertsB
In one dimensional elastic collision between two equal masses, their velocities are
interchanged. Therefore, change in linear momentum of any of the particle will be mu.
Now, impulse or area under F-t graph gives the change in linear momentum.
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