A projectile is given an initial velocity of (i + 2 j) m/s, where i is along the ground and j is along the vertical. If g = 10 m/s², the equation of its trajectory is:

Kinematics: JEE Main 2013 Physics question

JEE Main 2013 · Session, Shift 1 · Q7778

JEE Main 2013Session, Shift 1PhysicsMediumKinematics177× since 2002

A projectile is given an initial velocity of

\left( {\widehat i + 2\widehat j} \right)

m/s, where

{\widehat i}

is along the ground and

{\widehat j}

is along the vertical. If g = 10 m/s², the equation of its trajectory is: