A) 850 J
B) 950 J
C) 875 J
D) 900 J
Correct Answer: D
Solution :
\[x=3{{t}^{2}}+5\] |
\[\Rightarrow \] \[v=6t\] |
\[\Rightarrow \] \[\Delta W=\Delta k\] |
\[=\frac{1}{2}(2)\,{{(30)}^{2}}-\frac{1}{2}2{{(0)}^{2}}\] |
= 900 J. |
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