1.

The velcocity displacement graph of a particle moving along a straight line is shown in figure. The velocity as function of `x(0lexle1)` isA. `-10x`B. `-10x+10`C. `10x-10`D. `-10x^2+10x+10`

Answer» Correct Answer - B
The standard equation of straight line is
`y=mx+c` `because` `v=mx+c`
at `x=0`,`v=10(m)/(s)`
`10=mxx0+c` or `c=10`
or `v=mx+10`
At `x=1`,`v=0`
`0=mxx1xx10`
or `m=-10`
`v=-10x+10`


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