What does “Projectile trajectory” actually mean in Motion in a Plane, and why does it matter for NEET?
Eliminating time from x = u cos(theta)t and y = u sin(theta)t - gt^2/2 gives a quadratic y(x), so the ideal projectile path is a parabola.
In simple words: Eliminating time from x = u cos(theta)t and y = u sin(theta)t - gt^2/2 gives a quadratic y(x), so the ideal projectile path is a parabola. Getting Projectile trajectory clear matters because NEET questions on Motion in a Plane usually test this idea directly, not just a formula you memorised.
Key point
Projectile trajectory
Common mistake
assuming the speed is constant because the path looks smooth.
Memory tip
at the top only v_y is zero; v_x is still u cos(theta).
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