Define the term Speed and Velocity.

1.	Define the term Speed and Velocity.
Answer» Speed: It is rate of change of distance covered by the body with respect to time Speed = Distance travelled /time taken Speed is a scalar quantity .Its unit is meter /sec. and dimensional formula is[M⁰L¹ T^-1]. It is positive or zero but never negative. Velocity: The rate of change of position of an object in a particular direction with respect to time is called velocity. It is equal to the displacement covered by an object per unit time. Velocity =Displacement /Time Velocity is a vector quantity, its SI unit is meter per sec. Its dimensional formula is [M⁰L¹T^-1]. It may be negative, positive or zero.

Answer»

Speed: It is rate of change of distance covered by the body with respect to time

Speed = Distance travelled /time taken

Speed is a scalar quantity .Its unit is meter /sec. and dimensional formula is[M⁰L¹ T^-1]. It is positive or zero but never negative.

Velocity: The rate of change of position of an object in a particular direction with respect to time is called velocity. It is equal to the displacement covered by an object per unit time.

Velocity =Displacement /Time

Velocity is a vector quantity, its SI unit is meter per sec. Its dimensional formula is [M⁰L¹T^-1]. It may be negative, positive or zero.

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