A) \[v\propto t\]
B) \[v\propto \frac{1}{t}\]
C) \[v\propto \sqrt{t}\]
D) \[v\propto \frac{1}{\sqrt{t}}\]
Correct Answer: A
Solution :
[a] Power, \[\operatorname{P}=\operatorname{F}.v=m\frac{dv}{dt}.v\] As P is constant, \[\frac{v}{dt}=\]constant \[\Rightarrow v\propto dt\text{ }\Rightarrow v\propto t\]
You need to login to perform this action.
You will be redirected in
3 sec
