An athlete stands with both feet on a weighing scale. The scale reads 620 N. The athlete then lifts one foot completely off the scale and remains balanced on the other foot.
What is the new reading on the scale?
0 N0\text{ N}0 N
310 N310\text{ N}310 N
620 N620\text{ N}620 N
1240 N1240\text{ N}1240 N
209 exam-style questions on CIE IGCSE Physics Mass and weight, covering Mass and weight. Each one has a worked solution and a mark scheme showing where the marks go.