A) \[{{\omega }_{2}}\]
B) \[{{\omega }_{2}}-{{\omega }_{1}}\]
C) \[{{\omega }_{1}}:{{\omega }_{2}}\]
D) \[\sqrt{{{\omega }_{1}}}:\sqrt{{{\omega }_{2}}}\]
Correct Answer: A
Solution :
Key Idea: Outward force acting on the mass is known as centrifugal force. An object travelling in a circle behaves as if it is experiencing an outward force. This force is known as centrifugal force, which actually does not exist and is given by \[v\] In this case, \[\lambda \] \[\phi \]\[y=7\,\,\sin \left( 7\,\,\pi t-0.4\,\,\pi x+\frac{\pi }{3} \right)\] \[\frac{2\pi }{\lambda }v=7\pi \]\[\frac{2\pi }{\lambda }=0.4\pi \] \[\Rightarrow \] \[v=\frac{7\pi }{0.4\,\pi }=17.5\,\,m/s\] \[\left( \Delta U \right)\] \[\left( W \right)\]
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