Question

Initial velocity and acceleration of a particles are as shown in the figure. Acceleration vector of particle remain constant. Then radius of curvature of path of particle `:`

A. is `9m` initially
B. is `(9)/(sqrt(3))m` initially
C. will have minimum value of `(9)/(8)m`
D. will have minimum value `(3)/(8)m`

Answer 1

Correct Answer - A::C
Initially `ROC=(v^(2))/(a sin 30^(@))=(9)/(1)m`
For minimum `ROC=((vsin 30^(@))^(2))/(a)=(9)/(8)m`.