Question

A speed-time graph is shown below:

A Speed versus Time graph is shown with y-axis labeled position in centimeters per second up to 5 and x-axis labeled time in seconds up to 8. A straight line connects the points 0, 0 and 4, 4. A horizontal line connects points 4, 4 and 8, 4.

What is the average acceleration of the object represented in the graph above over the eight seconds?

0.5 cm/s2
1.0 cm/s2
1.5 cm/s2
2.0 cm/s2

Answer 1

0.5

Step-by-step explanation:

Answer 2

Answer:
`0.5 m/s^(2)`

Step-by-step explanation:

Average acceleration
`a_(ave)` is the variation of velocity
`\Delta V` over a specified period of time
`\Delta t`:

`a_(ave)=(\Delta V)/(\Delta t)}`

Where:

`\Delta V=V_(f)-V_(o)` being
`V_(o)=0 cm/s` the initial velocity and
`V_(f)=4 cm/s` the final velocity (according to the information given from the described graph)

`\Delta t=8 s`

Then:

`a_(ave)=(4 cm/s -0 cm/s)/(8 s)}`

`a_(ave)=0.5 m/s^(2)`