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Question
Draw the following graph:
Speed versus time for a stepped motion
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Solution
Speed time graph for a stepped motion
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Speed versus time for a fluctuating speed.
Derive the equation
S = ut+ `1/2` at2
Using a speed- time graph
(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.
