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kifflom [539]
3 years ago
13

The two cyclists travel at the same speed on level ground. They approach a low hill and decide to coast up instead of hard pedal

ing. At the top of the hill, which of the two bikes will have a larger speed? Assume no friction nor air resistance, and all the wheels roll on the ground without slipping.
a. The same speed; conservation of angular momentum.
b. The masses are necessary to answer this.
c. The same conservation of energy.
d. Bike B; its wheels have a larger moment of inertia.
e. Bike B; its wheels have a smaller moment of inertia.
Physics
1 answer:
Sergeeva-Olga [200]3 years ago
3 0

Answer:

  • <u>Option-(E): </u>Bike B; its wheels have a smaller moment of inertia.                                                                                                                                                                                                                                                                              

Explanation:

  • The two cyclists travel at the same speed on level ground, as they approach a low hill and decide to coast up instead of hard pedaling. At the top of the hill, as bike "B" will have a larger speed, as compared to the bike "A".Due, to the effect of having smaller moment of inertia, I=m×r².
  • Having no friction nor air resistance, and all the wheels roll on the ground without slipping. While, the B have larger speed,v due to the fact that bike "B" will have a larger speed,"v" as compared to the bike "A".
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Explanation:

It is given that,

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(a) Acceleration of the jogger :

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a=\dfrac{4.86\ m/s-0}{2.43\ s}

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(c) Distance covered by the car,

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Distance covered by the jogger,

d_2=u_2t_2+\dfrac{1}{2}a_2t_2^2

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