﻿ Water stream leaves from hose pipe with velocity u m/s at angle θ with vertical and hose pipe rotates about vertical axis with angular velocity ω rad/sec. Find the area of circle and where will the water stream strike the ground? from Physics Motion in A Plane Class 11 Manipur Board

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Water stream leaves from hose pipe with velocity u m/s at angle θ with vertical and hose pipe rotates about vertical axis with angular velocity ω rad/sec. Find the area of circle and where will the water stream strike the ground?

The radius of the circle is equal to the horizontal distance at which water stream strikes the ground.

That is,

Area of the circle is,

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Give three examples of scalar quantities.

Mass, temperature and energy
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What is a scalar quantity?

A physical quantity that requires only magnitude for its complete specification is called a scalar quantity.
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What is a vector quantity?

A physical quantity that requires direction along with magnitude, for its complete specification is called a vector quantity.
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What are the basic characteristics that a quantity must possess so that it may be a vector quantity?

A quantity must possess the direction and must follow the vector axioms. Any quantity that follows the vector axioms are classified as vectors.

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Give three examples of vector quantities.

Force, impulse and momentum.
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