A) 12 m/s
B) 18 m/s
C) 27 m/s
D) 36 m/s
Correct Answer: B
Solution :
\[v=u+\int_{{}}^{{}}{adt=u+\int_{{}}^{{}}{(3{{t}^{2}}+2t+2)dt}}\] \[=u+\frac{3{{t}^{3}}}{3}+\frac{2{{t}^{2}}}{2}+2t=u+{{t}^{3}}+{{t}^{2}}+2t\] \[=2+8+4+4=18\ m/s\] (As t = 2 sec)You need to login to perform this action.
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