Practice question
Question
In projectile motion, what is true about the velocity vector just before landing compared to just after launch, assuming level ground?
Explanation
Projectile motion splits into horizontal uniform and vertical accelerated motion per NCERT Chapter 4. Range R=u²sin2θ/g and max height H=u²sin²θ/2g. Using given u, θ, g, calculation yields It has the same magnitude but opposite vertical direction. Hence option D satisfies projectile formulas.