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Laws of Motion
Question
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Why do we pull the handle of bicycle in upward direction while pushing the paddles hard?

Answer

When the handle is pulled upwards, an equal and opposite reaction acts in the downward direction. This reaction force acts on the paddle. This increases the push on paddles and hence a cyclist is able to move smoothly. 

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Some More Questions From Laws of Motion Chapter

Is Aristotle’s law of motion now correct?

State Galileo’s law of motion.

Define inertia.

When the branches of an apple tree are shaken, the apples fall down. Why?

A person jumping out from a moving car or bus falls forward. Why?

Due to what type of inertia, the spark leaves the grind stone tangentially while sharpening the knife?

Which law of motion is also called law of inertia?

What is measure of inertia of body?

Which law of motion defines the force?

What happens to a stone tied to the end of string and whirled in a circle if the string suddenly breaks?