A roller coaster starts down a hill at 10 m/s. Three seconds later, its speed is 32 m/s. What is the roller coaster’s acceleration?
Question 1 options:
-7.3 m/s
-7.3 m/s2
3 m/s
3 m/s 2
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Question 2 (2 points) Question 2 Unsaved
Natalie accelerates her skateboard along a straight path from 4 m/s to 0 m/s in 25.0 s. Find the acceleration.
Question 2 options:
-6.25 m/s2
0.16 m/s2
-0.16 m/s2
6.25 m/s2
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Question 3 (2 points) Question 3 Unsaved
Find the average acceleration of a northbound subway train that slows from 12 m/s to 9.6 m/s in 0.9 s
Question 3 options:
-2.7 m/s2
2.7 m/s2
-2.7 m/s
2.7 m/s
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Question 4 (2 points) Question 4 Unsaved
What is a chicken’s rate of acceleration that speeds up from 4 mph (mi/h) to a top speed of 9 mi/h in 0.5 hr?
Question 4 options:
2.5 mi/h/s
-2.5 mi/h/s
2.5 mi/h2
10 mi/h2
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Question 5 (2 points) Question 5 Unsaved
Which units would be appropriate to measure Acceleration?
Question 5 options:
m/s with direction
m/s2
Kg (m/s)
m/s
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