Same chapter3 marksDifficulty: Medium
Distinguish between average velocity and instantaneous velocity.
Kinematics
3 marksDifficulty: Medium
Why is the horizontal component of the velocity of a projectile constant while the vertical component changes?
Original Khojo Papers practice question — not from a past board paper.
Answer
Ignoring air resistance, the only force on a projectile is its weight, which acts vertically. There is no horizontal force, so by Newton's first law the horizontal velocity is unchanged, while the vertical velocity changes at the rate g.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
This is why the path is a parabola.
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