A) \[\frac{3}{8}J\]
B) \[\frac{8}{3}J\]
C) \[\frac{19}{5}J\]
D) \[\frac{5}{19}J\]
Correct Answer: B
Solution :
[b] Acceleration\[=\frac{{{d}^{2}}s}{d{{t}^{2}}}=\frac{2}{3}m/{{s}^{2}}\] Force acting on the body \[=2\times 2=4\,cm\] Displacement in 2 sec\[=\frac{1}{3}\times 2\times 2=\frac{4}{3}m\] Work done\[2\times \frac{4}{3}=\frac{8}{3}J\]You need to login to perform this action.
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