Potatoo's answer to nancy's Secondary 3 E Maths Singapore question.
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13) B. Since the surface area of Fb is larger, in order to exert an equal amount of pressure to Fa, it needs to exert a larger amount of force.
Eg. Fa/A1 = Fb/A2 ... 4/2 = 8/4 and thus Fb>Fa
14) B.
F1/A1 = F2/A2
80/40 = F2/2
F2 = 4.0N(ans)
Eg. Fa/A1 = Fb/A2 ... 4/2 = 8/4 and thus Fb>Fa
14) B.
F1/A1 = F2/A2
80/40 = F2/2
F2 = 4.0N(ans)
Date Posted:
3 years ago
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