A) \[(2s)\text{ }m/{{s}^{2}}\]
B) \[(3s)\text{ }m/{{s}^{2}}\]
C) \[\left( \frac{2}{3}s \right)m/{{s}^{2}}\]
D) \[\left( \frac{3}{2}s \right)m/{{s}^{2}}\]
Correct Answer: C
Solution :
\[{{\text{S}}_{\text{n}}}\text{=u+}\frac{\text{a}}{\text{2}}\left( 2\text{n}-1 \right)\] \[\text{or, S=}\frac{a}{2}\left( 2\times 2-1 \right)\Rightarrow \text{a=}\frac{\text{2}}{\text{3}}\text{sm/}{{\text{s}}^{\text{2}}}\]
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