A small box of mass mi is sitting on a board of massmy and length L (Figure 1). The board rests on africtionless horizontal surface, The coefficient of staticfriction between the board and the box is 4g. Thecoefficient of kinetic friction between the board and thebox is, as usual, less than s.I Review | ConstantsPart AThroughout the problem, use g for the magnitude of thefree-fall acceleration. In the hints, use f for themagnitude of the friction force between the board andFind Fnin, the constant force with the least magnitude that must be applied to the board inorder to pull the board out from under the the box (which will then fall off of the opposite endof the board).the box.Express your answer in terms of some or all of the variables g, m1, m2, g, and L.Do not include f in your answer.Figure1 of 1>> View Available Hint(s)Fmin =SubmitProvide FeedbackNext >L OOe to search9:27 PMTh72°F3/24/2022**HomeEndInsertDeleteF7FBFOF10F11F12%23&*Backspace3456.8%3DW EY UFGH J K LEnX C V BNAltAltPrtScCtrlPgUp

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University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 23P: While sliding a couch across a floor, Andrea and Jennifer exert forces FA and FJ on the couch....

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Suppose the mass of a fully loaded module in which astronauts take off from the Moon is 1.00104kg . The thrust of its engines is 3.00104N . (a) Calculate the module’s magnitude of acceleration in a vertical takeoff from the Moon. (b) Could it lift off from Earth? If not, why not? If it could, calculate the magnitude of its acceleration.
Check Your Understanding A block of mass 1.0 kg rests on a horizontal surface. The frictional coefficients for the block and surface are s=0.50and k=0.40 . (a) What is the minimum horizontal force required to move the block? (b) What is the block’s acceleration when this force is applied?
Two blocks connected by a string are pulled across a horizontal surface by a force applied to one of the blocks, as shown below. The coefficient of kinetic friction between the blocks and the surface is 0.25. If each block has an acceleration of 2.0m/s2to the right, what is the magnitude Fof the applied force?
In the following figure m = 20.0 kg and a622 The coetticient of kinetic friction betwoen the biock and the incline is a -0.40 (Eigure 1) Part A What must be the mass my of the hanging block ifit ia to descend 14.5 m in the tinst 3.00 s after the system is neleaned from rest? Express your anewer with the appropriate units. Figure t of 1 my Value Units Submit Bequest Aner Provide Feedback Next>
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A skier is standing on a 30o hill. Draw the hill and add idealized force vectors that represent the force of the skier (FS), the normal force (FN), and the force of friction (FF).
a person is trying to judge whether a picture (mass =2.59kg) is properly positioned by temporarily pressing it against a wall. the pressing force is perpendicular to the wall. the coefficient of static friction between the picture and the wall is 0.650. What is the minimum amount of pressiong force that must be used? answe is 39N
The 6-m pole ABC is acted upon by a 460-N force, P, as shown in the figure. The pole is held by a ball-and-socket joint at A and by two cables BD and BE. For a = 3 m, determine the tension in each cable and the reaction at A. (Round the final answers to one decimal place.) 3. 1.5 m P E The tension in cable BD is The tension in cable BE is The reaction at A is - ( y C B 3 m N. N. N)i + 3 m 3 m 1.5 m 3 m X N)j + N)k.
a medium that opposes A body of macs m falle through iets fau with a force per proporional to the square of its velocity s0 that iu equation of motion úu mdx - mg -Rv2, v=a where. x the distance of Fall %3D dt2 and v is the velocity.If at t%=D0,2=0 and. v:o, fend the velocity oF the body and the destance it has fauen in t seconde.
Problem: A S0-kg box slides down an inclined plane made up of varlous materials. The plane is inclined 20 degrees from the horizontal, the materials and their respective coefficient of friction and distances is already given on the figure. I there is no external force applied on the box, and if the inilial velocity is at 100m/s. determine the following: A) What would be the velocily of the box after siding down along the Ice? Initial velocity, v 50 kd B) Frictional Force exerted when the box is on Concrete. C) Deceleration on the box when on concrete. DJ How for would the box slide down before it fuly stops. assuming that the rest of the incline is made up of wood? ICE. =0.15 CONCRETE. = 0.7 100 m 150 m WOOD, U0.35 E) Total Work done by the box.