if a graph shows time on the horizontal axis and speed on the vertical axis,a straight line across the graph?

Question

would indicate______.
a.no motion
b.constant speed
c.steady acceleration
d.maximum speed

Answer 1

It depends where on the graph the line is and in which direction it's pointed.

If it's vertical, it means it moved infinitely fast for an infinitely short period of time (basically undefined...)

If it's a horizontal line it means constant speed.

If it's a horizontal line through the origin (0,0) it means speed is zero across all tiem frames and there is no motion.

If the horizontal line is in the positive region of the graph it means that speed is positive and the object is likely moving forward or in the "positive direction" at a steady speed (since speed isn't changing but remaining constant). If the horizontal line is in the negative region of the graph, it means speed is "negative" or it's likely traveling backward (though there's not really such a thing as negative speed). The slowest a thing can move is 0. It can't move less than zero. meters/second or whatever. That's just nonsense.

So, yeah. Hope that helped!

(b) and, if through the origin, (a) as well.

I'll just assume this wasn't for the purposes of doing homework, since we're not supposed to be solving your problems for you.

We'll just assume this was a theoretical problem.

Likewise, if the line stars high and left and moved down and right it means the objects speed is decreasing with time. Or conversely if it starts at zero and moves up and right, the speed is increasing.

If there is a limit (in calculus) at a certain y value in terms of how fast a thing can go, it might look like a curve that rises steeply and then levels off moving ever closer to the "maximum limit of speed it can achieve..."

Cheers!
~Michael

Answer 2

B constant speed. I always mix up what horizontal and vertical means, (I'm hoping that's why you said A) but think of horizontal is like horizan, it's the one running flat.


(If you say C then you need to go back to 6th grade)
Steady acceleration would be a straight diagonal line.

Answer 3

B) constant speed

Answer 4

the answer would be b. constant speed because that means that the speed is increasing or decreasing at a constant rate as time increases.

Answer 5

Constant speed, unless I'm bass-ackwards again, which happens.

Answer 6

a.no motion

Answer 7

Hi, oops, !!! I was just looking for the washroom !

Answer 8

c