Parametric Equations for the Position of an Object Are Given

Multiple Choice

Parametric equations for the position of an object are given. Find the object's velocity and speed at the given time.

A) horizontal component of velocity: 0 vertical component of velocity: 9
Speed: 9
B) horizontal component of velocity: -7 vertical component of velocity: 0
Speed: 7
C) horizontal component of velocity: 7 vertical component of velocity: 0
Speed: -7
D) horizontal component of velocity: vertical component of velocity:
Speed: