A-LevelPhysicsDynamics9702/12 · May/June 2015 · Q121 Mark
An astronaut throws a stone with a horizontal velocity near to the Moon's surface. Which row describes the horizontal and vertical forces acting on the stone after release?
Ahorizontal force: constant, vertical force: constant
Bhorizontal force: constant, vertical force: decreasing
Chorizontal force: zero, vertical force: constant
Dhorizontal force: zero, vertical force: decreasing
✓ Correct answer
C: horizontal force: zero, vertical force: constant
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