Acceleration

Question 1

Which scenario involves acceleration?

Revolt · Accepted Answer

a car decreasing its speed due to a red light

Question 2

Study the image of the roller coaster, then answer the questions. Note that the arrows indicate the direction of the movement of the roller coaster train. Which section (A or B) of the roller coaster shows positive acceleration? Which section (A or B) of the roller coaster shows negative acceleration?

Revolt · Accepted Answer

Part 1: A; Part 2: B

Question 3

A car traveling at a speed of 24 m/s comes to a stop at a red light.How much time will it take for the car to stop if its acceleration is –8.0 m/s2?

Revolt · Accepted Answer

3 s

Question 4

The graph shows the motion of a car. Which segments show that the car is accelerating? Select three options.

Revolt · Accepted Answer

A; C; E

Question 5

The graph shows the motion of a car. Which segment shows that the car is slowing down?

Revolt · Accepted Answer

C

Question 6

Question 8

Revolt · Accepted Answer

75621

Question 7

What is the acceleration of the car at segment C?

Revolt · Accepted Answer

–30 m/s2

Question 8

Maia says that both lines on this position vs time graph show acceleration. Is she correct? Why or why not?

Revolt · Accepted Answer

No, Maia is not correct. On a position vs. time graph, a straight line represents a constant velocity, meaning there is no acceleration. Only a curved line represents changing velocity, which indicates acceleration. In this graph, one line is straight (constant velocity) and the other is curved (acceleration).

Acceleration Answers

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