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A particle is moving along x-axis. Its ...

A particle is moving along `x`-axis. Its x-coordinate versus time graph is as shown below. Draw some conclusion from the given graph.

A

`+ 2m/s`

B

`+ 1m/s`

C

`+ 12m/s`

D

`+ 20m/s`

Text Solution

Verified by Experts

The correct Answer is:
A
The conclusion drawn from the graph are as under:
(i) x-t graph is a straight line, slope of which `(v=(dx)/dt)` is positive and constant. Therefore,
velocity is positive and constant.
(ii) `v=(dx)/dt`= slope of `x-t` graph
`=+ 20/10 = + 2 m//s` Therefore, velocity is `2 m//s` along positive x-direction.
(iii) At `t = 0,x = -20m` and at `t = 10s,x = 0`
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