Question

naoki's bicycle has a mass of 10 kg. if naoki sits on her bicycle and starts pedaling with a force of 138 n, causing an acceleration of 2 m/s2, what is naoki's mass? a. 71 kg b. 20 kg c. 59 kg d. 69 kg

Answer 1

The correct answer is 59 kg

Given-

Mass of bicycle = 10 kg

                      F = 138 N

                      a = 2 m/s²

The mass of any body can be calculated by the force and acceleration of that body. We can use the formula as-

Calculation:

                    F = ma    

                   m = F/a

                       = 138/2

                       = 69 kg

                   m = mass of bicycle + Naoki's mass. Then

                  69 = 10 + Naoki's mass

                  Naoki's mass = 69 - 10 = 59

Naoki's mass = 59 kg

Therefore, the mass of Naoki that sits on the bicycle and is pedalling is 59 kg.

To learn more about mass, refer: https://brainly.com/question/15959704

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