﻿ The ceiling of a long hall is 25m high. What is the maximum horizontal distance that a ball thrown with speed of 40 m/s can go without hitting the ceiling of the hall? from Physics Motion in A Plane Class 11 Manipur Board

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Motion in A Plane

Physics Part I

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The ceiling of a long hall is 25m high. What is the maximum horizontal distance that a ball thrown with speed of 40 m/s can go without hitting the ceiling of the hall?

Height of the ceiling = 25 m = MAximum height attained by the ball.

Velocity of the ball, u = 40 m/s

Maximum height is given by,

i.e.,

∴

∴ Maximum horizontal distance,

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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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Give three examples of vector quantities.

Force, impulse and momentum.
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Give three examples of scalar quantities.

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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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