Solve the following problems on your own paper. Please:

• Show all work.
• Put a box around your final answer to each problem.
• Be sure proper significant figures (SF) used for all answers.
• Separate all solutions with a horizontal line on your paper.
• A random selection of four problems will be graded for 25 points each.
• Solutions for suggested odd problems can be seen by following links.
• Solutions for assigned problems will be linked from this page after the due date.

Chapter 15

#8

Answer with 3 SF. Necessary constants can be found on the inside back cover.

#10

Be careful with your signs here. For example, the forces on the center particle both point in the +x direction.

#12

Answer in vector form (magnitude and direction).

#16

I will discuss this one in class. 26 and 27 are similar.

#20

Answer with 3 SF. For more practice with motion under constant acceleration, see problems 22, 23, 36 and 52 in this chapter.

#24

Answer in vector form (magnitude and direction).

#50

Use Newton's laws. Take the x and y components of all the forces present, then sum all the x-components and set that equal to zero, then the y-components, etc.

Suggested problems from chapter 15:

C1, C2, C6, C7, C9, C12, C13, C14, C16, C17, C18, #1, #2, #3, #4, #5, #7, #9, #11, #13, #14, #15, #17, #18, #19, #22, #23, #25, #26, #27, #36, #47, #48, #49, #52

Chapter 16

#2

Answer with 2 SF. It might be easier to split the motion up into two components and solve each separately.

#8

Answer with 3 SF.

#10

You may assume that it takes half the total flight time in order to reach maximum height. Use this to find the acceleration. Based on the difference between the acceleration and "g", you can find the electric force, hence the electric field, etc.

#12

Note that 1 MicroCoulomb is 10^(-6) Coulombs.

Suggested problems for chapter 16:

C6, C7, #1, #4, #5, #6, #7, #11, #13, #14, #16, #17, #19