GENERAL KNOWLEDGE

GK

GENERAL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The rate at which an object moves is called:
A
Speed
B
Velocity
C
Mechanics
D
Physics
Explanation: 

Detailed explanation-1: -The speed of an object in a particular direction is called the velocity of an object. It is the rate of change of displacement. Velocity is a vector quantity as it has both magnitude and direction while speed only possesses magnitude but not direction. SI unit of velocity is m/s.

Detailed explanation-2: -Speed, being a scalar quantity, is the rate at which an object covers distance. The average speed is the distance (a scalar quantity) per time ratio.

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