O-LevelPhysicsForces5054/11 · May/June 2019 · Q61 Mark
A hot-air balloon is travelling at constant velocity and is at a constant height above the ground. The diagram shows the only four forces acting on the balloon. Which statement is correct?
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.
AW and Y are equal, X and Z are equal.
BW and Y are equal, X is greater than Z.
CX and Z are equal, Y is greater than W.
DY is greater than W, X is greater than Z.
✓ Correct answer
A: W and Y are equal, X and Z are equal.
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