A) 50m/s
B) 25m/s
C) 100m/s
D) 75m/s
Correct Answer: A
Solution :
[a] \[a=2t+5\] \[a=\frac{dv}{dt}=2t+5\] \[dv=2t\,dt+5dt\] Intergrate \[\int\limits_{{}^\circ }^{V}{dv}=\int\limits_{{}^\circ }^{5}{2t}\,dt\,+\int\limits_{{}^\circ }^{5}{5dt}\] \[v-o=\frac{2\,[{{t}^{2}}]_{{}^\circ }^{5}}{2}+5[t]_{{}^\circ }^{5}\] \[v=(25-0)+5\,[5-0]\] \[v=50m/s\]You need to login to perform this action.
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