Download Chapter 7 Practice Problems.notebook

Chapter 7 Practice Problems.notebook
January 26, 2011
Section 7.1, PP#2, pg. 151: An 8.0 N weight has one horizontal rope exerting a force of 6.0 N on it.
a. What are the magnitude and direction of the resultant force on the weight?
b. What force (magnitude and direction) is needed to put the weight into equilibrium?
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Chapter 7 Practice Problems.notebook
January 26, 2011
Section 7.1 PP#3, pg. 152: Two ropes pull on a ring. One exerts a 62 N force at 30.0 degrees, the other at 62 N force at 60 degrees.
a.) What is the net force on the ring?
b.) What are the magnitude and direction of the force that would cause the ring to be in equilibrium? (What is the equilibrant?)
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Chapter 7 Practice Problems.notebook
January 26, 2011
Section 7.1 PP#4, pg. 152: Two forces are exerted on an object. A 36 N force acts at 225 degrees and a 48 N force acts at 315 degrees. What are the magnitude and direction of the equilibrant?
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Chapter 7 Practice Problems.notebook
January 26, 2011
Section 7.2, PP#11, pg. 158: A steel ball rolls with a constant velocity across a tabletop 0.950 m high. It rolls off and hits the ground 0.352 m from the edge of the table. How fast was the ball rolling?
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Chapter 7 Practice Problems.notebook
January 26, 2011
Section 7.2 PP#12, pg. 160: A player kicks a football from ground level with an initial velocity of 27.0 m/s, 30 degrees above the horizontal, as shown in figure 7­8. Find the ball's hang time, range, and maximum height. Assume air resistance is negligible.
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