Question

a projectile is thrown with a velocity 10 m/s. the change in velocity during the time interval in which it reaches the highest point is

Answer 1

In a projectile only the sin component is affected by gravity if we neglect the air resistance.

So sin component of initial velocity = 10 sin α [ Angle of projection = α ]

Sin component of velocity at highest point = 0

So change in velocitα = 10 sinα