﻿ A river d km wide is flowing at rate  A swimmer which can swim with velocity  relative to water, dives into the river perpendicular to the direction of flow to cross the river. What is the displacement of swimmer when he reaches opposite side of the river? from Physics Motion in A Plane Class 11 Manipur Board

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A river d km wide is flowing at rate  A swimmer which can swim with velocity  relative to water, dives into the river perpendicular to the direction of flow to cross the river. What is the displacement of swimmer when he reaches opposite side of the river?

Width if the river = d km

Rate of flow of river = v1 m/s

Rate of flow of swimmer = v2 m/s

Given that, the swimmer is diving in a direction perpendicular to the flow of river, to cross the river.

Therefore, the displacement of the swimmer when he reaches the opposite side of the river is given by,

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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.

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A physical quantity that requires direction along with magnitude, for its complete specification is called a vector quantity.
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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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