﻿ A particle of mass m is driven by a machine that delivers a constant power K watts. If the particle starts from rest, the force on the particle at time t is from Physics Laws of Motion Class 11 Manipur Board

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A particle of mass m is driven by a machine that delivers a constant power K watts. If the particle starts from rest, the force on the particle at time t is

A.

As the machine delivers a constant power
So F, v =constant = k (watts)

As the machine delivers a constant power
So F, v =constant = k (watts)

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Define inertia.

The property by virtue of which the body cannot change its state of rest or uniform motion in a straight line, unless an external force is acting on the body is called as Inertia.
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When the branches of an apple tree are shaken, the apples fall down. Why?

The apple fall from an apple tree when it shaken because of inertia of rest. Apple is in a state of rest and when the tree is suddenly shaken, apples still tends to remain in it's same state of rest whereas branches move.

So, the apples fall down.
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State Galileo’s law of motion.

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What is Aristotle’s law of motion?

Aristotle’s law of motion states that an external force is required to keep the body in motion.
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Is Aristotle’s law of motion now correct?

No. Aristotl'e law of motion is false.
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