According to Figure 2-1A, what is the speed of the 2.0-kilogram mass when the time equals 5 seconds?
3 m/s
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15
Convert 150 cm to meters
1.5 meters
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lifesaver
Give 20 points!
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magnet
Take 20 points!
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fairy
Take points!
5
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25
banana
Go to last place!
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15
A speeding truck makes contact with a bug on its windshield. Compare the force that the bug exerts on the truck to the force the truck exerts on the bug.
Forces are the same for both
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15
A 20-kg block of cement is pulled upward (not sideways!) with a force of 400 N. What is the acceleration of the block?
10 m/s/s
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15
Two forces are applied to a 2.0-kilogram block on a frictionless, horizontal surface, as shown in the following diagram. What is the acceleration (speed and direction).
3 m/s/s right
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15
When you are seated in a chair, the force exerted on you by the chair is called the:
Normal force
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15
Speed with a direction is called ______________________.
velocity
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15
Gwen rides her bicycle 2.4 kilometers up a steep hill in 8 minutes. Her speed is ____ kilometers per minute.
0.3 km/min
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thief
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5
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25
shark
Other team loses 15 points!
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rocket
Go to first place!
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lifesaver
Give 25 points!
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15
What does the gradient mean on a distance time graph?
Speed
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15
The slope of a distance time graph is the ____________.
average speed
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trap
No points!
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magnet
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fairy
Take points!
5
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25
lifesaver
Give 25 points!
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15
The inertia of two objects must be the same if the same force causes the same ____?