5. Projectile Motion
Using Equation Substitution
Multiple Choice
Multiple ChoiceA ball is kicked at a 45° angle from the ground. It hits the wall of a building 30 m away, 10m up from the ground. What was the ball's initial velocity?
A
17.7 m/s
B
3.2 m/s
C
21 m/s
D
441 m/s
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