A body is projected at with a velocity at an angle of with the horizontal

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Kinematics · Kinematics

Problem

A body is projected at

t = 0

with a velocity

10 \text{ ms}^{-1}

at an angle of

60^\circ

with the horizontal. The radius of curvature of its trajectory at

t = 1 \text{ s}

R

. Neglecting air resistance and taking acceleration due to gravity

g = 10 \text{ ms}^{-2}

, the value of

R

is: (1) 10.3 m (2) 2.8 m (3) 2.5 m (4) 5.1 m