Exam-style question
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A projectile is launched with an initial velocity of 50 m/s at an angle of 30 degrees to the horizontal. Calculate the horizontal component of the initial velocity.
Model answer
What a good answer should say
- The horizontal component of the initial velocity is 43.3 m/s.
Explanation
Why this works
This question tests the ability to resolve a vector into its horizontal component using trigonometric functions. The formula used is Vx = V * cos(θ), where V is the initial velocity and θ is the angle of launch.
The substitution and calculation show the process clearly.
Common mistake
No common mistake is linked to this question yet.