A particle which is experiencing a force, given by 
, undergoes a displacement of 
. If the particle had a kinetic energy of 3J at the beginning of the displacement, what is kinetic energy at the end of the displacement?
Text Solution
Verified by ExpertsThe correct answer is:
B
work done by force cy = 
= 
= 12 J
By work energy theorem, W all = 
K
12 J = K f – K i
12 + K i = K f
K f = 12 + 3 = 15 J
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