first law of motion

A moving bicycle comes to rest after sometime if we stop pedalling it. But Newton's first law of motion that a moving body should continue to move for ever, unless some external force acts on it. How do you explain the bicycle case?

Ms. Cherian wanted to demonstrate Newton’s first law of motion to her students. She kept a long cloth on a table and a cup on the center of the cloth and then asked her students to perform a few activities or experiments. Which of the following would be relevant to her purpose?

Fill in the following blanks with suitable words: (a) …... is a measure of the inertia of a body. (b) When a running car stops suddenly, the passengers are jerked ..... (c) When a stationary car starts suddenly, the passengers are jerked.... (d) Newton's first law of motion is also called Galileo's law of.... (e) If there were no unbalanced force of.... and no........ resistance, a moving bicycle would go on moving for ever.

State secound law of motion and show that second law is the real law of motion .

Show that Newton's second law of motion is the real law of motion.

State Aristotelian law of motion. What is flaw in this law ?