The radial component of velocity and acceleration in curvilinear motion are
1
\(\dot r\) and \(\ddot r-r(\dot \theta )^2\)
2
\(r\dot\theta\) and \(r\ddot\theta +2\dot r\dot \theta\)
3
0 and \(\dot r\dot\theta\)
4
\(\dot r\) and \(r\ddot\theta\)
5
Not Attempted