AIR RESISTANCE AND TERMINAL VELOCITY
2 marks · EasyAn astronaut drops a tool with a mass of 2.5 kg on a planet where the gravitational field strength is 4 N/kg. Calculate the weight of the tool.
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10 N (±0)
Also accept: 10 N
Common mistakes: Multiplying by 9.8 or 10 instead of 4; Giving the mass instead of the weight
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Marking points
M1 · 1 mark · Substitutes correct values into W = m × g
A1 · 1 mark · Correct calculation: 2.5 × 4 = 10 N (follow-through)
Worked solution