A 3.0-m-long ladder, as shown in Figure 12.35, leans against a frictionless wall. The coefficient of static
Question:
A 3.0-m-long ladder, as shown in Figure 12.35, leans against a frictionless wall. The coefficient of static friction between the ladder and the floor is 0.40. What is the minimum angle the ladder can make with the floor without slipping?
L= 3.0 m dz Center of mass Tnet = 0 about this point. 60° fs Gravity acts at di the center of mass. ·Static friction prevents slipping.
Step by Step Answer:
Model The ladder is a rigid rod of length L To not slip it must be in both translational ...View the full answer
Physics for Scientists and Engineers A Strategic Approach with Modern Physics
ISBN: 978-0133942651
4th edition
Authors: Randall D. Knight
Related Video
Take 2 forks and place them on one another in such a way that we can place the coin in between the prongs. Now try to place the coin with forks on the edge of the glass. It will take you some time to adjust the coin on the edge. This requires a little practice to adjust the coin on the edge of the glass. With a little effort, we will see the coin sitting on the edge calmly. If you look closely you will see it wobbling a little bit. The mass is in the handles of the forks so as a low center of mass it stables as it looks.
Students also viewed these Physics questions
-
A long, non-uniform board of length 8.0 m and mass m = 12 kg is suspended by two ropes as shown in Figure P8.83. If the tensions in the ropes are mg/3 (on the left) and 2mg/3 (on the right), what is...
-
A stepladder of negligible weight is constructed as shown in Figure P12.57. A painter of mass 70.0 kg stands on the ladder 3.00 m from the bottom. Assuming the floor is frictionless, find (a) The...
-
A 12-cm-diameter tube is 13 m long and used to siphon water from the reservoir and discharge it into the air, as shown in Figure P4.2.2. If the total head loss between the intake end of the tube and...
-
Given a shaky economy and high heating costs, more and more households are struggling to pay utility bills (The Wall Street Journal, February, 14, 2008). Particularly hard hit are households with...
-
Megatron Inc owns a television station in the interior of British Columbia. Its year end is June 30. The company completed the following transactions: 2014 Apr. 1 Paid $2,175,000 plus $75,000 in...
-
Suppose you are given the following information about a particular industry: Assume that all firms are identical, and that the market is characterized by perfect competition. a) Find the equilibrium...
-
Complete the priority checklist in Exhibit 10.2. What do your responses to the checklist tell you about your career choices? Personal Life Family Life goals Personal wealth Career Goals Ambition...
-
After the presentation of your report on the examination of the financial statements to the board of directors of Piper Publishing Company, one of the new directors expresses surprise that the income...
-
What measures can be implemented to address the growing cybersecurity threats targeting supply chain infrastructure, safeguarding critical assets and sensitive information against data breaches and...
-
GV is a small accounting firm supporting wealthy individuals in their preparation of annual income tax statements. Every December, GV sends out a short survey to its customers, asking for the...
-
A persons center of mass is easily found by having the person lie on a reaction board. A horizontal, 2.5-m-long, 6.1 kg reaction board is supported only at the ends, with one end resting on a scale...
-
In Figure P12.59, an 80 kg construction worker sits down 2.0 m from the end of a 1450 kg steel beam to eat his lunch.What is the tension in the cable? Cable 307 6.0 m
-
Student researchers asked their subjects how much sleep they had the previous night (in hours) and then timed how long it took them (in seconds) to complete a paper and pencil maze. The results are...
-
Based on the information in problem 13, if / is currently 10 what is C? If / increases by one unit to 11, what is C? What percentage increase is that? Problem 13 A semi-log (log-lin) consumption...
-
Use the following list to jog your memory about what youve done. For each item, give three or four details as well as a general statement. Describe a time when you 1. Used facts and figures to gain...
-
We have shown that if {Y n } is a sequence of w 2 random variables, where Yn ~, then (Yn - n)/2nN(0, 1). Since Y we know that P(y2534.3816) Ply 50 63.1671) = P(y100118.498) = .90. Assign (approx-...
-
Given the AC curve in the previous problem, what is the total cost function? Previous problem An average cost curve is found to be AC = 89.96 + 0.0179Q2 2.294Q. At what level of output is average...
-
A semi-log (log-lin) consumption function states InC = 2 + 0.058I in which lnC is the log of consumption for a small national economy measured in billions of monetary units and / is the income...
-
Consider two identical countries in our standard overlapping generations model. In each country, the population of every generation is 100 and each young person wants money balances worth 18 goods....
-
Find the volume of the described solid S. A frustum of a right circular cone with height h, lower base radius R, and top radius r -r- --R
-
A 50-cm 50-cm circuit board that contains 121 square chips on one side is to be cooled by combined naturalconvection and radiation by mounting it on a vertical surface in a room at 25C. Each chip...
-
Reconsider Prob. 2030. Using an appropriate software, investigate the effects of the room temperature and the emissivity of the board on the temperature of the hot surface of the board for different...
-
Consider a 15-cm à 20-cm printed circuit board (PCB) that has electronic components on one side. The board is placed in a room at 20°C. The heat loss from the back surface of the board is...
-
Match the statements to the protocols * faster more reliable used for sending data TCP UDP both
-
1. Should managers try to maximize market value of equity or to maximize the accounting value of equity in the balance sheet? Why? 2. What is your understanding of the relationship between risk and...
-
How much risk is appropriate for a government-run annuity system? Is there an appropriate risk-return calculation to be made? Is Social Security risk free? What about political risk?
Study smarter with the SolutionInn App