A block of mass 2 kg is free to move along the x-axis. It is at rest and from 
onwards it is subjected to a timedependent force 
in the 
-direction. The force 
varies with 
as shown in the figure. The kinetic energy of the block after 4.5 s is
Text Solution
Verified by ExpertsThe correct answer is:
C
Area under F - t graph 
change in momentum
net area of 
graph 
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