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2. From the table given, plot a displacement-time graph.
Time(s) | 0 | 1 | 2 | 3 | 4 | 6 | 8 | 10 |
Displacement(m) | 3 | 6 | 9 | td>1212 | 12 | 6 | 0 |
From the graph
Given tabular data
To find displacement at (i)5s (ii)7s and (iii)9s
Average velocity between (i) 0-3s (ii) 3 -6 s(iii)6-10s
Solution:
Plotting given tabular data we get the following graph
From the graph
the displacements are as follows
(i) at 5s; 12 m
(ii) at 7s; 9 m
(iii)at 9s; 3m
Average velocity between
(i) 0 and 3 s; average velocity = $\frac{12-3}{3-0}= 3$ $ ms^-1$
(ii) 3 and 6s; average velocity = $\frac{12-12}{6-3}= 0$ $ ms^-1$
(iii) 6 and 10s; average velocity=$\frac{0-`12}{10-6}= -3$ $ ms^-1$
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