Practice question · Multiple choice
Horizontal and vertical motion in projectile flight are treated independently. What makes that separation legitimate?
Hints
- Write down the force vector and look at its components.
- What links the two equations at all?
Show the answer
B. Gravity acts only vertically, so the two share only the time
Why
Vector equations separate componentwise when the force has only one component. Time is the sole connection, which is why "how long is it in the air" answers "how far does it go".
Practise Kinematics in Two Dimensions and Projectile Motion
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