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प्रश्न
Diagram shows a velocity – time graph for a car starting from rest. The graph has three sections AB, BC and CD.
From a study of this graph, state how the distance travelled in any section is determined.
उत्तर
The area under the x-axis gives distance travelled.
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संबंधित प्रश्न
Draw displacement – time graph for the following situation:
When a body is stationary.
A ball is thrown up vertically and returns back to thrower in 6 s. Assuming there is no air friction, plot a graph between velocity and time. From the graph calculate
- deceleration
- acceleration
- total distance covered by ball
- average velocity.
Diagram is given below shows velocity – time graph of car P and Q, starting from the same place and in the same direction. Calculate which car is ahead after 10 s and by how much?
Represent the position of a body described as at 15 m, 30o north of west, on a graph paper.
Draw the speed-time graph of a body when its initial speed is not zero and the speed increases uniformly with time.
What can you say about the motion of a body if:
Its time-velocity graph is a straight line
Draw distance-time graph to show:
Decreasing velocity
(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.
Slope of the velocity-time graph gives ______.
An object is moving in a positive direction with positive acceleration. The velocity-time graph with constant acceleration which represents the above situation is:
