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Define velocity. State its unit. A Velocity is defined as the rate of change of distance of a body with respect to time. Its unit in SI is k m / s . B Velocity is defined as the rate of change of displacement of a body with respect to time. Its unit in SI is k m / s . C Velocity is defined as the rate of change of distance of a body with respect to time. Its unit in SI is m / s . D Velocity is defined as the rate of change of displacement of a body with respect to time. Its unit in SI is m / s .

Define velocity. State its unit.

A

Velocity is defined as the rate of change of distance of a body with respect to time. Its unit in SI is km/s.

B

Velocity is defined as the rate of change of displacement of a body with respect to time. Its unit in SI is km/s.

C

Velocity is defined as the rate of change of distance of a body with respect to time. Its unit in SI is m/s.

D

Velocity is defined as the rate of change of displacement of a body with respect to time. Its unit in SI is m/s.

 

Grade:12

2 Answers

Vikas TU
14149 Points
10 months ago
Dear student 
The velocity of an object is usually defined as the rate of displacement that a particle or an object undergoes within a span of time. Velocity is stated to be a physical vector quantity meaning both direction and magnitude have to be taken into consideration in order to define it.The SI unit of velocity is meter per second (m/s).
ankit singh
askIITians Faculty 614 Points
10 months ago
The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion (e.g. 60 km/h to the north).

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