A missile is fired for maximum range with an initial velocity

A missile is fired for maximum range with an initial velocity of 20 m/s. If g = 10 m/s² , the range of the missile is

For maximum range, the angle of projection, θ = 45°

∴ R =	u² sin 2θ
	g

=	(20)² sin (2 × 45°)
	10

=	400 × 1	= 40 m
	10