A particle of mass 
originally at rest is subjected to a force whose direction is constant but magnitude varies with time according to the relation
Where 
and 
are constants. The force acts only for the time interval 
. The velocity 
of the particle after time 
is:
Text Solution
Verified by ExpertsC
From the given problem we can infer that
at 
also, 
or, 
Therefore, we have
acceleration, 
or, 
The particle will have constant velocity, as force will not act after 
, which will be equal to 
.
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