﻿ A cricketer can throw a ball to a maximum horizontal distance of 100 m. How much high above the ground can the cricketer throw the same ball? from Physics Motion in A Plane Class 11 Manipur Board

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A cricketer can throw a ball to a maximum horizontal distance of 100 m. How much high above the ground can the cricketer throw the same ball?

Horizontal range is maximum if the angle of projection is 45°.

Horizontal range in this case is given by,

So,

∴

If the cricketer throws the ball vertically upward then it will attain the maximum height from the ground.

∴      , is the height of the ball from the ground.
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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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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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Give three examples of vector quantities.

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