A tennis ball is thrown into an initial velocity that has a horizontal component of
5.5 m/s, and a vertical component of 3.7 m/s.
What is the speed of the ball at the top of
the trajectory?

Velocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt. Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (Δt), represented by the equation r = d/Δt.

Explanation:

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