A) \[{{t}^{2}}{{p}_{0}}\]
B) \[{{t}^{1/2}}\]
C) \[{{t}^{-1/2}}\]
D) \[t/\sqrt{m}\]
Correct Answer: B
Solution :
Power \[{{P}_{0}}=Fv\] |
\[=\left( m\frac{dv}{dt} \right)v\] |
\[=mv\frac{dv}{dt}\] |
Integrating both sides |
\[\int_{{}}^{{}}{{{p}_{0}}dt=\int_{{}}^{{}}{mv\,dv}}\] |
\[{{p}_{0}}t=\frac{m{{v}^{2}}}{2}\] |
\[{{v}^{2}}=\frac{2{{p}_{0}}t}{m}\] |
\[v\propto {{t}^{1/2}}\] |
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