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Question

A stone is falling from a mountain. The velocity of the stone is given by V=9.8t. Draw its graph and find the velocity of the stone 4 seconds after start.

Solution
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The velocity at each second is shown in the table below:

x (time in second) 0 1 2 3 4
y (velocity in m/s) 0 9.8 19.6 29.4 39.2


As we can see after 4 sec velocity of stone is 39.2m/s.


The velocity-time graph is drawn by taking velocity on the y-axis and time on the x-axis.

1068554_570527_ans_6b8ef913dfd44486ade4f498c1577b43.JPG

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