Velocity-time graph of various types of
motion of a body.
- When a body is moving with a constant velocity, the velocity-time graph is a straight line AB parallel to time axis.
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| Velocity-time graph-1 |
The slope of
velocity-time curve (representing the instantaneous acceleration) is zero.
- When a body is moving with a constant acceleration and its initial velocity is zero, the velocity-time curve is an oblique straight line, passing through origin.
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| Velocity-time graph-2 |
Greater will be the slope of straight line OA, greater will be the instantaneous acceleration.
- When a body is moving with a constant acceleration and its initial velocity is not zero, the velocity-time curve is an oblique straight line AB not passing through origin.
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| Velocity-time graph-3 |
A) Here OA represents the instant velocity of the boy.
B) The area enclosed by the
velocity-time figure with time axis represents the
distance traveled by the body.
- When a body is moving with a constant retardation and its initial velocity is not zero, the velocity-time curve is an oblique straight line AB not passing through origin.
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| Velocity-time graph-4 |
The slope of straight line with time axis, makes an angle θ>90⁰.
- When a body is moving with increasing acceleration, the velocity-time curve is a curve with bend upwards.
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| Velocity-time graph-5 |
The slope of velocity-time curve (i.e. instantaneous acceleration) increases with time.
- When a body is moving with decreasing acceleration, the velocity-time graph is a cure.
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| Velocity-time graph-6 |
The slope of velocity-time curve (i.e. instantaneous acceleration) decreases with time.
