A-LevelPhysicsKinematics9702/12 · May/June 2021 · Q71 Mark
A projectile is fired from point P with velocity V at an angle θ to the horizontal. It lands at point Q, a horizontal distance R from P. Air resistance is negligible. [Figure 7.1] The acceleration of free fall is g. Which equation for R is correct?
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AV²sin θ cos θ / g
B2V²sin θ cos θ / g
CV²sin θ cos θ / 2g
DV²g sin θ cos θ / 2
✓ Correct answer
B: 2V²sin θ cos θ / g
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