At what point of a projectile motion, acceleration and velocity are perpendicular to each other ?

Question

At what point of a projectile motion, acceleration and velocity are perpendicular to each other ? (A) At the point of projection (B) At the point of drop (C) At the top most point (D) Anywhere in between the point of projection and top most point

Tardigrade Admin · Accepted Answer

At the top most point of the projectile there is only horizontal component of velocity and acceleration due to gravity is vertically downward, so velocity and acceleration are perpendicular so each other.

Q. At what point of a projectile motion, acceleration and velocity are perpendicular to each other ?

At the point of projection

At the point of drop

At the top most point

Anywhere in between the point of projection and top most point

At the top most point of the projectile there is only horizontal component of velocity and acceleration due to gravity is vertically downward, so velocity and acceleration are perpendicular so each other.