A) 6.5 J
B) 2.5 J
C) 4 J
D) 5 J
Correct Answer: A
Solution :
According to work energy theorem Work done by force on the particle = Change in KE Work done = Area under F-x graph\[=\int_{{}}^{{}}{F.dx}\] \[2\times 2+\frac{(2+3)\times 1}{2}\] \[W=K{{E}_{final}}-K{{E}_{initial}}=6.5\] \[K{{E}_{initial}}=0\] \[K{{E}_{final}}=6.5J\]
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