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Supposed Herbert is using a pulley to life a crate. Which of the following would cause Herbert to do more work?
870 J
150 J
In order to do work, an object must be moved.
A 600-N force is applied to an object and moves it 0 m.
lifting the crate higher
work per unit of time
1 W
J
1 J/s equals-
870 J
150 J
In order to do work, an object must be moved.
A 600-N force is applied to an object and moves it 0 m.
lifting the crate higher
work per unit of time
1 W
J
How much work would you have to do in order to life a 60 N object 2.5 meters?
870 J
150 J
In order to do work, an object must be moved.
A 600-N force is applied to an object and moves it 0 m.
lifting the crate higher
work per unit of time
1 W
J
When you are holding a heavy object stationary in your arms, you are not doing any work even though you may get tired. Why is this?
870 J
150 J
In order to do work, an object must be moved.
A 600-N force is applied to an object and moves it 0 m.
lifting the crate higher
work per unit of time
1 W
J
Which of the following is the best definition for power?
870 J
150 J
In order to do work, an object must be moved.
A 600-N force is applied to an object and moves it 0 m.
lifting the crate higher
work per unit of time
1 W
J
In what unit or units is work measured?
870 J
150 J
In order to do work, an object must be moved.
A 600-N force is applied to an object and moves it 0 m.
lifting the crate higher
work per unit of time
1 W
J
Robert pulls a bucket of water 15 meters up from the bottom of a well. He pulled with a force of 58 newtons. How much work did Robert do?
870 J
150 J
In order to do work, an object must be moved.
A 600-N force is applied to an object and moves it 0 m.
lifting the crate higher
work per unit of time
1 W
J
In which of the following situations would the least work have been done?
870 J
150 J
In order to do work, an object must be moved.
A 600-N force is applied to an object and moves it 0 m.
lifting the crate higher
work per unit of time
1 W
J
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