vibhuti ji and bhabhi ji

vec a=hat i+2hat jandvec b=2hat i+hat jis|vec a|=|vec b|? Are the vectors vec a and vec b equal?

A projectile is given an initial velocity of (ˆi+2ˆj) m/s ,where hat i is along the ground and hat jis along the vertical.If g=10m/s^(2) ,the equation of its trajectory is