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प्रश्न
Three speed-time graphs are given below :

Which graph represents the case of:
(i) a cricket ball thrown vertically upwards and returning to the hands of the thrower ?
(ii) a trolley decelerating to a constant speed and then accelerating uniformly ?
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उत्तर
(i) Graph (c) represents a cricket ball thrown vertically upwards and returning to the hands of the thrower.
(ii) Graph (a) represents a trolley decelerating to a constant speed and then accelerating uniformly.
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संबंधित प्रश्न
Multiple choice Question. Select the correct option.
The distance covered in the adjoining velocity-time graph is :

A train starting from rest picks up a speed of 20 ms−1 in 200 s. It continues to move at the same rate for the next 500 s and is then brought to rest in another 100 s.
- Plot a speed-time graph.
- From graph calculate
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(b) uniform rate of retardation
(c) total distance covered before stopping
(d) average speed.
From the velocity – time graph given below, calculate acceleration in the region AB.

Draw the speed-time graph of a body starting from some point P, gradually picking up speed, then running at a uniform speed and finally slowing down to stop at some point Q.
Draw the following graph:
Speed versus time for a fluctuating speed.
What can you say about the nature of motion of a body of its displacement-time graph is:
A straight line inclined to the time axis with an acute angle?
Draw distance-time graph to show:
Decreasing velocity
What does the slope of velocity-time graph represent?
State whether true or false. If false, correct the statement.
The velocity – time graph of a particle falling freely under gravity would be a straight line parallel to the x axis.
A straight line parallel to the x-axis in the velocity-time graph represents the object moving in ______.
