JEE Main 201911 Jan, Morning shiftPhysicsMediumKinematics177× since 2002
A body is projected at t = 0 with a velocity 10 ms^–1
at an angle of 60^o with the horizontal. The radius of curvature of its trajectory at t = 1s is R. neglecting air resistance and taking acceleration due to gravity g = 10 ms^–2, the value of R is :