A car is driving at 60 m/s. After 7 seconds, it is traveling at 45 m/s. What is the acceleration of the car? (round to the nearest hundredth)
-2.14 m/s2
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15
Is acceleration a vector quantity or a scalar quantity?
Vector quantity, because it has magnitude and direction.
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15
If an object is moving at a constant speed but changes its direction, is it accelerating?
yes
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seesaw
Swap points!
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star
Double points!
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rocket
Go to first place!
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thief
Give points!
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25
15
A motorcycle increases its speed from 8 m/s to 30 m/s in 9 seconds. What is the acceleration of the motorcycle? (Please round to the nearest hundredth)
2.44 m/s2
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15
A walker travels at a speed of 3 miles per hour. If they walked for 24 hours straight, how much distance would they cover (in miles)?
72 miles
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monster
Reset all scores!
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rocket
Go to first place!
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fairy
Take points!
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25
banana
Go to last place!
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15
A woman runs 26.2 miles in 4 hours. What is her average speed in miles per hour?
6.55 miles per hour
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15
what is the formula for acceleration?
(final velocity - initial velocity) / time
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trap
No points!
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seesaw
Swap points!
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shark
Other team loses 15 points!
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baam
Lose 20 points!
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15
A man is walking at a velocity of 3 miles per hour to the west. A woman is walking at a velocity of 3 miles per hour to the east. Are they traveling at the same velocity?
No, because they are traveling in different directions.
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lifesaver
Give 15 points!
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star
Double points!
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rocket
Go to first place!
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baam
Lose 20 points!
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15
What is the change in velocity over time called?
acceleration
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15
If an object decreases its speed, is it accelerating?
yes
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15
If an object increases its speed, is it accelerating?
yes
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15
What is the acceleration of a baseball when its speed increases from 1 m/s to 25 m/s in 1 second?