A) zero
B) \[\text{8 }m/{{s}^{2}}\]
C) \[20\text{ }m/{{s}^{2}}\]
D) \[\text{40 }m/{{s}^{2}}\]
Correct Answer: B
Solution :
\[a={{\left[ \left( \frac{{{d}^{2}}x}{d{{t}^{2}}} \right)+\left( \frac{{{d}^{2}}y}{d{{t}^{2}}} \right) \right]}^{1/2}}\] Here \[\frac{{{d}^{2}}y}{d{{t}^{2}}}=0\] Hence, \[a=\frac{{{d}^{2}}x}{d{{t}^{2}}}=8\,m/{{s}^{2}}\]You need to login to perform this action.
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