Chapter : 1. Motion
Speed and Velocity
(ii) Speed and Velocity
The 'distance' travelled by a body in unit time interval is called its speed. When the position of a body changes in particular direction, then speed is denoted by 'velocity'. i.e. the rate of change of displacement of a body is called its Velocity.Speed is a scalar quantity while velocityis a vector quantity.
Unit : In M.K.S. system = ms–1
In C.G.S. system = cm/s
If time distance graph is given then speed can be given by the slope of the line, at given time
The area of velocity time graph gives displacement travelled.
Types of speed
(a) Average and Instantaneous speed
(b) Uniform and Non uniform speed
The 'distance' travelled by a body in unit time interval is called its speed. When the position of a body changes in particular direction, then speed is denoted by 'velocity'. i.e. the rate of change of displacement of a body is called its Velocity.Speed is a scalar quantity while velocityis a vector quantity.
Unit : In M.K.S. system = ms–1
In C.G.S. system = cm/s
If time distance graph is given then speed can be given by the slope of the line, at given time
The area of velocity time graph gives displacement travelled.
Types of speed
(a) Average and Instantaneous speed
(b) Uniform and Non uniform speed
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