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प्रश्न
The slope of the speed–time graph gives ______.
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उत्तर
The slope of the speed–time graph gives acceleration.
Explanation:
Acceleration is the rate of change of velocity over time. Since speed is the magnitude of velocity, a speed-time graph essentially shows how the speed of an object changes with time. The slope of this graph, which is the change in speed divided by the change in time, thus indicates the acceleration of the object.
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संबंधित प्रश्न
What is the quantity which is measured by the area occupied below the velocity-time graph?
Draw a displacement-time graph for a boy going to school with uniform velocity.
Draw velocity – time graph for the following situation:
When a body, is moving with uniform velocity.
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
(a) uniform rate of acceleration
(b) uniform rate of retardation
(c) total distance covered before stopping
(d) average speed.
How will you use a speed-time graph to find whether the acceleration of the body is uniform or not?
Given on th e side are a few speed - time graphs for various objects moving along a stra ight line. Refer below figure. (a), (b), (c) and (d).
Which of these graphs represent
(a) Uni form motion
(b) Motion with speed increasing
(c) Motion with speed decreasing and
(d) Motion with speed oscillating.?
Given below are the speed -time graphs. Match them with their corresponding motions :
 |
(a) Uniformity retared motion |
 |
(b) Non-uniformity acceleration |
 |
(c) Non-uniform motion |
 |
(d) uniform motion |
Draw velocity-time graph to show:
Deceleration
Write a sentence to explain the shape of graph.
Figure shows the distance-time graph of three students A, B and C. On the basis of the graph, answer the following :
Will the three ever meet at any point on the road?
(i) In speed time graph uniform motion is given by a straight line parallel to x axis so figure (a) denotes the uniform motion.
(ii) In speed time graph motion with increasing speed is shown by straight line with positive slope so figure (c) denotes the motion with speed increasing.
(iii) In speed time graph motion with decreasing speed is shown by straight line with negative slope so figure (b) denotes the motion with speed decreasing.
(iv) In speed time graph motion with oscillating speed is shown by zigzag line so figure {d) denotes the motion with speed oscillating.
