A-LevelPhysicsKinematics9702/12 · Oct/Nov 2021 · Q31 Mark
A tennis ball is hit so that it leaves the racket with velocity v at an angle θ to the horizontal. [Figure 3.1] The vertical component of the velocity is v_y. What is the magnitude of the horizontal component of v?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Av sin θ
Bv_y cos θ
Cv_y / sin θ
D(v² – v_y²)^½
✓ Correct answer
D: (v² – v_y²)^½
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