Physics · Oct / Nov 2017 · Paper 12 · Question 4
5054Friction
A free-fall skydiver jumps from a plane. As he falls there is a force acting upwards and a force acting downwards on his body. These produce a resultant force. Before he reaches terminal velocity, how do the sizes of the forces change?
- Adownward force decreases; upward force decreases; resultant force stays the same
- Bdownward force increases; upward force stays the same; resultant force decreases
- Cdownward force stays the same; upward force increases; resultant force decreases
- Ddownward force stays the same; upward force increases; resultant force increases
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Correct answer: C. downward force stays the same; upward force increases; resultant force decreases
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