alleryHolding a 100 g mass, your palm pushes up with about:
A1 newton
B9 newtons
C5 newtons
D0 newtons
Answer & Solution
Correct answer: A. 1 newton
1. The palm must balance the weight of the mass.
2. A 100 g mass weighs about a tenth of 9.8 newtons.
3. So the upward force is around 1 newton.
4. The answer is 1 newton.
_Source: syllabus Science, Ch 6 'How Forces Affect Motion'_
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