Graphical Representation of Linear Motion

Author:R P Goyal & S P Tripathi
9th ICSE
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Important Questions on Graphical Representation of Linear Motion

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A ball moves on a smooth floor in a straight line with a uniform velocity 10 m s-1 for 6 s. At t=6 s, the ball hits a ball and come back along the same line to the starting point with same speed. Draw the velocity-time graph and use it to find the total distance travelled by the ball and its displacement.

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The figure shows velocity-time graph for the motion of a body. Use it to find the displacement of the body at t= 1 s, 2 s,3 s and 4 s, then draw displacement-time graph for it on figure (b).

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A body is at rest is made to fall from the top of a tower. Its displacement at different instants is given in the following table

Time (in s) 0.1 0.2 0.3 0.4 0.5 0.6
Displacement (in m) 0.05 0.20 0.45 0.80 1.25 1.80

Draw a displacement-time graph and state whether the motion is uniform or non-uniform?

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Figure shows the displacement of a body at different times

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Calculate the average velocity during the time interval 5 s to 9 s.

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For a uniformly retarded motion, the velocity-time graph is :

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The velocity-time graph of a body in motion is a straight line inclined to the time axis. The correct statement is :
 

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A body falls freely from a certain height. Show graphically the relation between the distance fallen and the square of time. How will you determine g from this graph?

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Figure (a) shows the displacement-time graph for the motion of a body. Use it to calculate the velocity of a body t=1 s, 2 s and 3 s, then draw the velocity-time graph for it in figure (b).

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How is the distance related to time for the motion under uniform acceleration such as the motion of a freely falling body?

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Draw a velocity-time graph for the free fall of a body under gravity, starting from rest g=10 m s-2.

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Draw a graph for acceleration against time for a uniformly accelerated motion. How can it be used to find the change in speed in a certain interval of time?

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The figure shows the displacement-time graph for four bodies A, B, C, and D. In each case state what information you get about the acceleration (zero, positive or negative).

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The velocity-time graph for a uniformly retarded body is a straight line inclined to the time axis with an obtuse angle. How is retardation calculated from the velocity-time graph?

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The figure shows the velocity-time graph for two cars A and B moving in the same direction. Which car has the greater acceleration? Give reason to your answer.

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Draw a velocity-time graph for a body moving with an initial velocity u and uniform acceleration a. Use this graph to find the distance travelled by the body in time t.

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The figure shows a displacement-time graph of two vehicles A and B moving along a straight road. Which vehicle is moving faster? Give reason.

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What does the slope of the velocity-time graph represent?

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Draw a displacement-time graph for a boy going to school with a uniform velocity.

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Can the displacement-time sketch be parallel to the displacement axis? Give a reason for your answer.