m = m LL F Two boxes (both mass m) are set up one atop the other on a frictionless table. There is static friction between the boxes. The bottom box is pulled by force F, as shown. How would the force diagram of the top box alone and the force diagram for the system of both boxes differ? Elimination Tool Select one answer A The force diagram for the top box would include a force of gravity and the system's force diagram would not. B The force diagram for the top box would include a frictional force acting on it while the system's force diagram would not. C The force diagram of the top box would not include friction but the system's force diagram would. D The force diagram for the top box would include a normal force while the force diagram for the system would not.

m = m LL F Two boxes (both mass m) are set up one atop the other on a frictionless table. There is static friction between the boxes. The bottom box is pulled by force F, as shown. How would the force diagram of the top box alone and the force diagram for the system of both boxes differ? Elimination Tool Select one answer A The force diagram for the top box would include a force of gravity and the system's force diagram would not. B The force diagram for the top box would include a frictional force acting on it while the system's force diagram would not. C The force diagram of the top box would not include friction but the system's force diagram would. D The force diagram for the top box would include a normal force while the force diagram for the system would not.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.50P: The block of weight W is pulled by the force P inclined at the angle to the horizontal. Find the...

See similar textbooks

Similar questions

Draw the FBD of the entire frame, assuming that friction and the weights of the members are negligible. How many unknowns appear on this FBD?
The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016, determine the force F required to advance the bar at a constant speed.
The bar ABC is supported by three identical, ideal springs. Note that the springs are always vertical because the collars to which they are attached are free to slide on the horizontal rail. Find the angle at equilibrium if W = kL. Neglect the weight of the bar.
The coeffient of static friction between the uniform bar AB of weight W and the ground is 0.45. Find the smallest angle and the corresponding force P that would initiate simultaneous tipping and sliding of the bar.
A wedge is used to prop up the 6000-lb block of marble. The wedge angle is =30, and the angle of static friction is s=12 between all contact surfaces. Determine the smallest force P that would prevent the wedge from sliding out.
Q1) Yousif pushes toward the right on an 11.0 N force on the box in the opposite direction. The magnitude of the kinetic friction force between the box and the very smooth floor is 4.50 N as the box slides toward the right. Also, the magnitude of the normal force is 98 N. For the above information, find the following? a box with a force of magnitude 31.0 N. Sarah applies 6. The free-body diagram 7. The mass of the box 8. The box's acceleration in the x-direction 9. The box's acceleration in the y-direction 10. coefficient of dynamic friction Q 2) A rope pulls the block up the ramp, as shown in the figure. Find the following: 7. Draw a free body diagram for the block. 8. Write the equation that sums the forces on the block that are parallel to the ramp. 9. Write the equation that sums the forces on the block that are perpendicular to the ramp. 10. What is the acceleration of the block perpendicular to the ramp? 11. What is the friction force? a = 4.3 m/s? T = N A = 0.45 6.0 kg 0= 30°…
hello I was looking at this problem and I can't seem to figure out how to get the FBD's done I think I have the majority of it but I think I am missing somthing. my thought process for this was to find the two friction forces on block b which should be in opposition of force P
Q2: a- Calculate the centripetal force exerted on 900 kg car that negotiates a 500 m radius curve at 25 m/sec. b- Assuming an unbanked curve ,find the minimum statics coefficient of friction between the tires and the road ,statics friction being the reason that keeps the car from slipping.
The system shown is in static equilibrium and motionless. • The force "P" is at the maximum magnitude that will not initiate motion. NOTE: Submitted responses shall be to 4 significant figures. Do NOT use scientific notation. Find: 1. The magnitude of weight of Block-A is 2. The magnitude of internal force in the rope is N. _N. 3. The magnitude of normal force between Block-A and Block-B is N. 4. The magnitude of friction force between Block-A and Block-B is N. 5. The magnitude of normal force between Block-B and the Ground is 6. The magnitude of friction force between Block-B and the Ground is 7. The magnitude of force P is_N. _N. N. A 100 kg 30° H, = 0.30 200 kg B P -Hy = 0.20
A 140-kg block is resting on a 25 deg inclined plane with a coefficient of friction = 0.83. Find the required horizontal force P (kN) that is necessary to start the block UP the incline ROUND OFF TO TWO DECIMAL PLACES.
QUESTION 2 Figure Q2 shows a 100 kg block is pulled by a man with a cable. The coefficient of static friction between the block and floor surface is 0.3, determine: a) the tension in the cable to stop block A form slipping down. b) the tension in the cable to start moving block A towards the man. SOALAN 2 Rajah S2 menunjukkan blok 100 kg ditarik oleh seorang lelaki dengan kabel. Pekali geseran statik antara blok dan permukaan lantai adalah 0.3, tentukan: a) ketegangan dalam kabel untuk menghentikan blok A dari tergelincir ke bawah. 60 b) ketegangan pada kabel untuk mula menggerakkan blok A Figure Q2/ Rajah S2 ke arah lelaki itu.
A box weighing 150lb is moved across a horizontal Floor by dragging it by means of a rope attached to the front end. If the rope makes an angle of 30° with the floor and if the coefficient of friction between box and floor is 0.400, find the force exerted by the man pulling the rope.