A) \[\frac{{{F}^{2}}{{t}^{2}}}{m}\]
B) \[\frac{{{F}^{2}}{{t}^{2}}}{2m}\]
C) \[\frac{{{F}^{2}}{{t}^{2}}}{3m}\]
D) \[\frac{F\,t}{2m}\]
Correct Answer: B
Solution :
Kinetic energy \[E=\frac{{{P}^{2}}}{2m}=\frac{{{(Ft)}^{2}}}{2m}\]\[=\frac{{{F}^{2}}{{t}^{2}}}{2m}\] [As P = F t]
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