Naoki's bicycle has a mass of 9 kg. If Naoki sits on her bicycle and starts pedaling with a force of 107.2 N, causing an acceler
ation of 1.6 m/s2, what is Naoki's mass?
A.
69 kg
B.
58 kg
C.
67 kg
D.
14 kg
PLZ HELP ME........thank you
1 answer:
Answer:
Explanation:
F = ma
m = F/a
m = 107.2/1.6 = 67 kg
so Naoki's mass must be the total mass - mass of the bike
so her mass is 67 - 9 = 58 kg...B
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