An object with mass=0.2kg is at rest on a horizontal table top. It is then pushed a distance of 0.1m to the edge of the table by a 2N force applied horizontally to it. The friction force between the object and the table is 0.5N. The object then falls a distance of 1m directly down onto the floor where it comes to rest. Calculate the amount of net work done on the object, 1.85 J -2.15 J OJ 2.15 J -1.85 J O O

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Chapter7: Work And Kinetic Energy
Section: Chapter Questions
Problem 84AP: A cart is pulled a distance D on a flat, horizontal surface by a constant farce F that acts at an...
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b)

An object with mass=0.2kg is at rest on a horizontal table top. It is then pushed a distance of 0.1m to the edge of the table by a 2N force applied horizontally to it. The
friction force between the object and the table is 0.5N. The object then falls a distance of 1m directly down onto the floor where it comes to rest. Calculate the amount
of net work done on the object,
1.85 J
-2.15 J
O J
2.15 J
-1.85 J
Transcribed Image Text:An object with mass=0.2kg is at rest on a horizontal table top. It is then pushed a distance of 0.1m to the edge of the table by a 2N force applied horizontally to it. The friction force between the object and the table is 0.5N. The object then falls a distance of 1m directly down onto the floor where it comes to rest. Calculate the amount of net work done on the object, 1.85 J -2.15 J O J 2.15 J -1.85 J
If the applied force to the object were at an angle of 30-degrees below the horizontal, how would the magnitude of the net work done on the object change from Part A
above?
It reduces in magnitude
It increases in magnitude
Can not determine, need more information
It remains the same
Transcribed Image Text:If the applied force to the object were at an angle of 30-degrees below the horizontal, how would the magnitude of the net work done on the object change from Part A above? It reduces in magnitude It increases in magnitude Can not determine, need more information It remains the same
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