Question: You must push a crate across a floor to a docking bay. The crate weighs 165 N. The coefficient of static friction between crate and

You must push a crate across a floor to a docking bay. The crate weighs 165 N. The coefficient of static friction between crate and floor is 0.510, and the coefficient of kinetic friction is 0.32. Your force on the crate is directed horizontally.
(a) What magnitude of your push puts the crate on the verge of sliding?
(b) With what magnitude must you then push to keep the crate moving at a constant velocity?
(c) If, instead, you then push with the same magnitude as the answer to (a), what is the magnitude of the crate's acceleration?

Step by Step Solution

★★★★★

3.30 Rating (171 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

FN a The push to get it moving must be at least as big as fsmax s FN Eq 61 with ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

2-P-M-F-F (87).docx

120 KBs Word File

Students Have Also Explored These Related Mechanics Questions!

If the coefficient of static friction between your coffee cup and the horizontal dashboard of your car is s = 0.800, how fast can you drive on a horizontal roadway around a right turn of radius 30.0...

If the coefficient of static friction between a car's tires and the pavement is 0.65, calculate the minimum torque that must be applied to the 66-cm-diameter tire of a 1080-kg automobile in order to...

The coefficient of static friction between Teflon and scrambled eggs is about 0.04. What is the smallest angle from the horizontal that will cause the eggs to slide across the bottom of a...

Physics question Dynamics forces and kinematics review . A 38 kg crate rests on a horizontal floor. A horizontal pulling force of 170 N is needed to start the crate moving. After it is in motion, a...

1. Four blocks, with masses m1 = 5.60 kg, m2 = 4.60 kg, m; = 7.90 kg, and m4 = 7.50 kg, are pulled on a horizontal frictionless surface by a 36.0 N force that makes a 36 0 angle (6) with the...

Incline Planes with Free Body Diagrams 1. A box weighing 77.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end as shown below....

11. [/1.66 Points] SERCP11 4.7.P.056. 0/20 Submissions Used ASK YOUR TEACHER Two blocks each of mass m are fastened to the top of an elevator as in the figure. The elevator has an upward acceleration...

Imagine repeating the experiment, only now with a second brick on top of the first. This doubles the normal force and it also doubles the maximum force of static friction. Thus, the maximum force is...

1. A cart on wheels weighs 2400 N. The coefficient of rolling friction between the wheels and floor is 0.16. What force is needed to keep the cart rolling uniformly? 2. A wooden crate weighs 780 lb....

Locate these drinks on the perceptual map in Figure 88: (a) Cappuccino, (b) Beer, (c) Soymilk. High nutrition Orange juice Regular milk The repositioning strat The re Adult ocolate milk Nutritionally...

"The function of a court called upon to consider an application to remove the name of a practitioner from a roll of practitioners is... to determine whether... the solicitor has failed, by action or...

The Brolesque Corporation is considering investing in a new machine that will cost $ 1 , 2 0 0 and reduce power usage over the next 1 0 years. They believe that it will save $ 4 0 0 next year ( Year...

Arrhenius & Bronsted Theory 1. NH, is not a base according to 1) Bronsted theory 3) Arrhenius theory 4) Lowry theory 2. HCI gas cannot act as an acid in 1) Polar solvents 3) NH, liquid 3. Which of...

8. The new drug described in the chapter opener changes the amino acid glycine into aspartic acid at the 551st DNA base in the gene encoding the cystic fibrosis transmembrane conductance regulator,...

What is the amount of Accounts Receivable at the end of January 31 (after AJE)? Use accrual accounting. What is the Total of Non-Current Assets at the end of January as reported in the Balance Sheet?...

Why does the net present value method favor larger projects over smaller ones when used to choose between mutually exclusive projects? What do you think, Is this a problem to choose in smaller...

What is the IP address?

Solve the following problem using analytical techniques: Suppose you walk 18.0 m straight west and then 25.0 m straight north. How far are you from your starting point, and what is the compass...

(a) What is the magnitude of the orbital angular momentum in a state with l = 3? (b) What is the magnitude of its largest projection on an imposed z axis?

For a helium atom in its ground state, what are quantum numbers ((n, l, ml, ms) for the? (a) spin-up electron (b) spin-down electron

Consider the elements selenium (Z = 34), bromine (Z = 35), and krypton (Z = 36). In their part of the periodic table, the sub shells of the electronic states are filled in the sequence 1s 2s 2p 3s 3p...

Suppose two electrons in an atom have quantum numbers n = 2 and l = 1. (a) How many states are possible for those two electrons? (Keep in mind that the electrons are indistinguishable.) (b) If the...

Through what minimum potential difference must an electron in an x-ray tube be accelerated so that it can produce x rays with a wavelength of 0.100 nm?

company is considering two mutually exclusive expansion plans. Plan A requires a $40 million expenditure on a large-scale integrated plant that would rovide expected cash flows of $6.39 million per...