A) \[60\text{ }{{\pi }^{2}}\text{ }m/{{s}^{2}}\]
B) \[88\,{{\pi }^{2}}m/{{s}^{2}}\]
C) \[140\,{{\pi }^{2}}m/{{s}^{2}}\]
D) \[144\,{{\pi }^{2}}m/{{s}^{2}}\]
Correct Answer: D
Solution :
Here: amplitude \[a=0.01\text{ }m\] Frequency\[f=60\text{ }Hz\] Using the relation for maximum acceleration \[=a{{\omega }^{2}}=a{{(2\pi f)}^{2}}=a(4{{\pi }^{2}}{{f}^{2}})\] \[=0.01\times {{\pi }^{2}}\times 4\times {{(60)}^{2}}=144\text{ }{{\pi }^{2}}m/{{s}^{2}}\]
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