The figure shows the velocity and acceleration of a point like body at the initialy moment of its motion. The acceleration vector of the body remains constant. The minimum radius of curvature of trajectory of the body is :

Options

A. 2m
B. 4m
C. 8m
D. 16 m

Answer

C

Explanation

A t certain instant velocity parallel to acceleration will be zero then velocity `= 8 cos 60^(@)`
Radius of curvation `= (v^(2))/(a_(bot))`
`= ((8 cos 60^(@)))/(2) = 8 m`