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17. What is responsible for keeping a spinning top stable or moving bicycle upright? a. Conservation...

17. What is responsible for keeping a spinning top stable or moving bicycle upright?

a. Conservation of Energy Law

b. Newton’s Third Law

c. Angular Momentum Conservation Law

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Answer #1

C. Angular momentum conservation law. Is the correct answer.

As it top spins in its position, it rotates around an vertical axis. The law states that the top would keep spinning continuously , if there is no other external forces acting upon it.

And in case of bicycle, The angular momentum of the wheel is perpendicular to its plane, and hence parallel to the ground. To change its direction one needs to apply a huge torque to it.

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