
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Transcribed Image Text:Practice: Force and Newton's 1“ Law
Answer the following questions. You may use a separate sheet of paper, if needed.
1. Draw and label a picture to show the difference between balanced and unbalanced forces.
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2. Explain how balanced and unbalanced forces affect an object's motion differently.
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3. Can there be forces acting on an object at rest? Explain why or why not.
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4. What is the net force on an object that has balanced forces acting on it?
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5. Find the net force acting on the books below.
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6. Find the net force acting on the books below.
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F = 10 N
FGN
7. Two students push on a box in the same direction and a third student pushes in the opposite direction.
What is the net force on the box if each push with a force of 50 N?
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8. Why is Newton's 1" Law also known as the Law of Inertia?
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9. The more Add Text!
an object has, the more inertia it has.
10. Rank the following objects from least amount of inertia
2 Kindergartener
Or: Not Rocket Simce 2017
most amount of inertia.
? Elephant
? Textbook ? Pencil
Motion and Force Unit
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- Suppose that down at the docks, Popeye is pulling the objects shown below with a force of 985 N in the horizontal direction, as shown below. Mass #2 (150.0 kg) is connected to Mass #1 (50.0 kg) by a single cable that is passed over an ideal pulley. The coefficient of kinetic friction between Mass #2 and the ledge is 0.254. He successfully moves the objects after they were at rest. A. What is the magnitude of the tension in the rope connecting the objects? B. What is the magnitude of the acceleration of the objects?arrow_forwardwhile tom pushes a 40 kg box in horizontal direction along the classroom floor with a 100 N force, the box is moving in a straight line with constant speed of 0.5 m/s. Ignor air resistance when answering the questions below. a. Write down as much information as you can about the main horizontal forces exerted on the box ( names, directions and if enough information is given, numerical values). b. Write down as much information as you can about the main vertical forces exerted on the box (names, directions, and whenever possible, if enough information is given, numberical values). c. How far did the refrigerator move during those 3 seconds? Explain d. What was the refrigerator's acceleration during that time? Explainarrow_forward
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