Exam-style question
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What is the vertical component of an initial velocity of 30 m/s at an angle of 45 degrees?.
- A.21.21 m/s
- B.30 m/s
- C.15 m/s
- D.25 m/s
Model answer
What a good answer should say
- 21.21 m/s
Explanation
Why this works
The vertical component is calculated using: Vy = V * sin(θ). Substituting gives Vy = 30 * sin(45°) = 30 * 0.707 = 21.21 m/s.
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