Distance travelled by a particle as a function of time is given below as
Then, find the time 
in second when power delivered to the body is minimum.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Given, 
Velocity, 
and acceleration is, 
So, force acting on it is
where, 
is the mass of particle.
Now, power is 
When power is minimum, then
So, 
is minimum at 
.
Use this method to find the value of 
.
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