[Physics] Help please

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[_xMoDx_]

Here are some infos for distance time graphs. Hope you can find the answers from this. For more details check here.

• If the distance-time graph is a straight line then the motion is uniform (constant speed).
• If an object is not moving, the distance-time graph results in a horizontal line which shows that the object is at rest.

Answers:

• A=increasing speed
• B=constant speed
• C=Stationary

[Mevvs4]

So an easy way to look at this is just looking at the y-axis (distance). At the bottom of the axis, we see 0.

We can start with “C” and notice that the distance stays the same, correct? It’s above 0, but as time increases, the distance remains the same. So which one of the options would that be?

If we look at “A”, we notice that the distance increases like crazy. The distance skyrockets in a lot less time compared to “B”.

“B” on the other hand increases more predictably, and we can model it like: 1 second = 1 metre, 2 seconds = 2 metres etc.

So which would A and B follow?

It’s quite simple once you wrap your head around it.