Zusammenfassung der Ressource
Frage 1
Frage
Assuming that the box is moving to the right, what is the magnitude and direction of the force applied by the person pushing?
Antworten
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2 N, right
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2 N, left
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0.4 N, right
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0.4 N, left
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10 N, left
Frage 2
Frage
A car slides up a frictionless inclined plane. How does the normal force of the incline on the car compare with the weight of the car?
Antworten
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The normal force must be equal to the car's weight.
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The normal force must be less than the car's weight.
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The normal force must be greater than the car's weight.
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The normal force must be zero.
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The normal force could have any value relative to the car's weight.
Frage 3
Frage
What is the magnitude of the acceleration of the 40 kg block?
Antworten
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0.5 m/s•s
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1 m/s•s
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2 m/s•s
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4 m/s•s
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5 m/s•s
Frage 4
Frage
What is the magnitude of the tension T in the rope that connects the two blocks?
Frage 5
Frage
Two people are pulling on the ends of a rope. Each person pulls with a force of 100 N. The tension in the rope is:
Antworten
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0 N
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50 N
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100 N
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141 N
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200 N
Frage 6
Frage
What must be necessary for the driver to feel weightless?
Antworten
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at the top of a hill when v > √gr
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at the bottom of a hill when v > √gr
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going down a hill when v = √gr
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at the top of a hill when v < √gr
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at the bottom of a hill when v < √gr
Frage 7
Frage
In which position would the tension in the string be largest?
Frage 8
Frage
What is the magnitude of the acceleration of the "two block" system?
Antworten
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1 m/s•s
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2 m/s•s
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3 m/s•s
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6 m/s•s
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15 m/s•s
Frage 9
Frage
What is the magnitude of the force of static friction between the top and bottom blocks?
Frage 10
Frage
What is the minimum coefficient of static friction necessary to keep the top block from slipping on the bottom block?
Frage 11
Frage
A satellite orbiting the Earth with a radius of R has an acceleration due to gravity of Ag. If the radius is doubled, what is the acceleration of the satellite?
Frage 12
Frage
What is the tension in the horizontal cable?
Antworten
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87 N
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150 N
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170 N
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260 N
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300 N