Question

Look over my work? Medal And Fan!

Answer 1

The graph provided shows the velocity f(t) of a runner during a certain time interval:



Which of the following describes the intercepts on the graph?

The initial acceleration of the runner was 8 m/s2, and the runner stopped after 6 seconds.

The initial acceleration of the runner was 6 m/s2, and the runner stopped after 8 seconds.

The initial velocity of the runner was 8 m/s, and the runner stopped after 6 seconds.

The initial velocity of the runner was 6 m/s, and the runner stopped after 8 seconds.

Answer 2

I said B.

Answer 3

@imer

Answer 4

OK, you are quite close. Tell me what does "intercept" means?

Answer 5

thats like an axis

Answer 6

@iPwnBunnies

Answer 7

Acceleration is the slope of the graph because y-axis is "velocity" and x-axis is "time" and we know Acceleration is change in velocity/time which the slope of the graph.

Answer 8

ok

Answer 9

y-Intercept of the graph is where the line cuts the "y-axis" where x-coordinate is always 0 and we know that it cuts at (0,6)

Answer 10

Should I have not squared it? So then it is D?

Answer 11

Well the y-axis is the velocity and not the acceleration. Therefore, the answer is "D".

Answer 12

It's not about squaring, "m/s^2" is the unit for acceleration and "m/s" is the unit for velocity.

Answer 13

Oh. Okay. Want the next question on a new post?

Answer 14

Or do you want me to keep it on here?

Answer 15

Sure, as long as you are understanding the concept.

Answer 16

I do. (: