Exam-style question
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In a projectile motion model, what is assumed about the initial velocity of the projectile?.
- A.It is always directed vertically upwards.
- B.It can be resolved into horizontal and vertical components.
- C.It decreases as the projectile rises.
- D.It is independent of the launch angle.
Model answer
What a good answer should say
- It can be resolved into horizontal and vertical components.
Explanation
Why this works
An assumption in projectile motion models is that the initial velocity can be resolved into horizontal and vertical components, allowing for separate analysis of motion in each direction.
Common mistake
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