Question

Somebody help me? my head hurts here

1.between which two points is the car accelerating at the greatest rate?

2.between which two points is the car travelling at a steady speed?

3.what is the acceleration of the car between C and D?

4.between which two points is the acceleration getting bigger and bigger?

5.what is the acceleration of the car between D and F?​​

Answer 1

Answer 1 :

`\green{\sf{D \: and \: E}}`

Step-by-step explanation:

As per graph, the highest lines are D and E. They are increasing.

Answer 2:-

`\sf{\blue{B \: and \: C}}`

Step-by-step Explanation:

It is because the line between B and C is straight, indicating that it is steady.

Answer 3:-

`\sf{\pink{2 \: m/s}}`

Step-by-step Explanation:

Its because the interval between line CD can be taken as-

`\sf{40-50 = 1 m/s} \\ \sf{50-60 = 2 m/s}`

Hence, 2 m/s.

Answer 4:

`\sf{\red{A \: and \: E}}`

Step-by-step Explanation:

We can see from the graph that the change in lines us occurring between initial and final points, i.e., between A and E.

Answer 5:

`\sf{\purple{1m/s}}`

Step-by-step Explanation:

This is because, we can consider the interval between points D and E as :-

`\sf{60-70=1m/s}`