A truck accelerates from speed 
to 
. Work done in acceleration the truck during this is
A
three times as the work done in accelerating it from rest to 
B
same as the work done in accelerating it from rest to 
C
four times as the work done in accelerating it from rest to 
D
less than the work done in accelerating it from rest to 
.
.
Text Solution
Verified by ExpertsThe correct answer is:
A
: Let 
be mass of the truck.
According to work-energy theorem
Work done in accelerating the truck from rest to speed 
is
Work done in accelerating the truck from speed 
to 
is
(Using i)
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