Speed and Velocity

Question 1

An airplane turning from south to west at constant speed is accelerating due to a change in .

Revolt · Accepted Answer

direction

Question 2

A biker going 7 m/s west after travelling north at 5 m/s is accelerating due to a change in .

Revolt · Accepted Answer

speed and direction

Question 3

A runaway shopping cart speeding up as it goes down a hill is accelerating due to a change in .

Revolt · Accepted Answer

speed

Question 4

The acceleration of segment D is m/s2. | Rank segments A, B, and C from least acceleration to greatest acceleration. | Least: | Greatest:

Revolt · Accepted Answer

A

Question 5

Which statement correctly describes the differences between positive and negative acceleration?

Revolt · Accepted Answer

Positive acceleration describes an increase in speed; negative acceleration describes a decrease in speed.

Question 6

A cyclist going downhill is accelerating at 1.2 m/s2. If the final velocity of the cyclist is 16 m/s after 10 seconds, what is the cyclist’s initial velocity?

Revolt · Accepted Answer

4 m/s

Question 7

The acceleration of segment D is m/s2.

Revolt · Accepted Answer

-20

Question 8

The acceleration of segment D is m/s2. | Rank segments A, B, and C from least acceleration to greatest acceleration. | Least: | Greatest:

Revolt · Accepted Answer

C

Question 9

The acceleration of segment D is m/s2. | Rank segments A, B, and C from least acceleration to greatest acceleration. | Least: | Greatest:

Revolt · Accepted Answer

B

Speed and Velocity Answers

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