Question

Newton’s first law of motion says that a moving body should continue to move forever , unless some external forces act on it. But a moving cycle comes to rest after some time if we stop pedaling it. Can you choose the correct reason for the stoppage of cycle? . i) Air resistance . ii. Gravitational pull of the earth . . iii. Friction of the road . iv. Heat of the environment

Answer 1

Answer:

The First Law states, "A body at rest will remain at rest, and a body in motion will remain in motion unless it is acted upon by an external force." This simply means that things cannot start, stop or change direction all by themselves.

Explanation:

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Answer 2

The correct reason for the stoppage of the cycle is both i) Air resistance and iii. The friction of the road

• The force of air resistance and friction of the road has forced the bicycle to change its state of motion after we stop pedalling.
• If there was no air resistance or friction to impede the bicycle's motion, the bicycle would continue to move indefinitely, according to the first law of motion.
• This simply means that things cannot begin, end, or change direction on their own. To bring about such a change, they must be subjected to some external force.