I am thinking that options a and c must not be the right answer since they obviously show that a=0,however, I don't understand how does it come up those x-axis in options b and d from the motion equations. Which one of them represents a uniformly accelerated motion with a ≠0? Can anyone please teach me?enter image description here


1 Answer 1


Every graph xy can be intrepreted as a function y(x)

Option a refers to


Where v is costant

Option b refers to


Where k has dimensions $1/(seconds*meters)$ which I have never personally encountered and have no idea what it is

Option c refers to


where h has dimesions $meters^2/seconds$ (no idea what that could be)

Option d refers to


solve for $s$ and you get


We know that $v=at$ because $v(s=0)=0$ so it has no initial velocity. Therefore


Which is the uniformly accelerated motion, so d is the correct answer. I hope everything is clear


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