A block of mass 10 kg is moving in x-direction with a constant speed of 
. It is subjected to a retarding force 
during its travel from x = 20 m to x = 30 m. Its final kinetic energy will be:
Text Solution
Verified by ExpertsThe correct answer is:
D
: Here, 
Initial kinetic energy of the block is
Work done by retarding force
According to work-energy theorem
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