A ball moving at a speed of 3 m / s was hit in a perpendicular direction

A ball moving at a speed of 3 m / s was hit in a perpendicular direction, which told the ball in the direction of the impact a speed of 4 m / s. Determine the speed of the ball after hitting

Problem data: V1 (initial ball speed) = 3 m / s; V2 (speed imparted to the ball by impact) = 4 m / s; α (angle between vectors of velocities) = 90º.

Since the given vectors of the ball’s velocities are located at an angle of 90º, then to calculate the velocity after impact, we apply the Pythagorean theorem: V = √ (V1 ^ 2 + V2 ^ 2).

Calculation: V = √ (3 ^ 2 + 4 ^ 2) = 5 m / s.

Answer: After hitting, the ball will move at a speed of 5 m / s.