Part A In the (Figure 1) the coefficient of static friction between mass m and the table is 0.40, whereas the coefficient of kinetic friction is 0.13. Ignore masses of the cord and the (frictionless) pulley What minimum value of m, will keep the system from starting to move? Express your answer to two significant figures and include the appropriate units. HẢ Value Units Submit Request Answer • Part B What value of m keep the system moving at constant speed? will Express your answer to two significant figures and include the appropriate units. Figure < 1 of 1> Value Units mA Submit Reauest Answer mg= 2.0 kg Provide Feedback

Part A In the (Figure 1) the coefficient of static friction between mass m and the table is 0.40, whereas the coefficient of kinetic friction is 0.13. Ignore masses of the cord and the (frictionless) pulley What minimum value of m, will keep the system from starting to move? Express your answer to two significant figures and include the appropriate units. HẢ Value Units Submit Request Answer • Part B What value of m keep the system moving at constant speed? will Express your answer to two significant figures and include the appropriate units. Figure < 1 of 1> Value Units mA Submit Reauest Answer mg= 2.0 kg Provide Feedback

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter5: Displacement And Force In Two Dimensions

Section: Chapter Questions

Problem 104A

See similar textbooks

Similar questions

A body with a mass of 5 kg rests on a rough horizontal table with a coefficient of static friction of 0.9. At a given moment, a horizontal force of 40 N is applied to this body, as shown in the figure. Analyze the propositions and answer the alternative that corresponds to the sum of the correct ones. Adopt g = 10 m/s². (01) With the data presented, we can conclude that the static friction force is 48 N. (02) In the proposed situation, the body will move with an acceleration of 5 m/s2. (04) In the proposed situation, the body will not move. (08) In the proposed situation, the body will be subjected to a frictional force of 40 N. (16) In the proposed situation, the body will be subjected to a frictional force of 45 N. (32) In the proposed situation, the net force in the body is null a) 12 b) 17 c) 19 d) 27 e) 44
A 525 N block is on a rough, horizontal surface with an applied horizontal force as shown in Figure 1. (a) If a force of 295N is required to start the block in motion, what is the coefficient of static friction, us? (b) If force of 205 N is required to maintain the block at constant velocity, what is the coefficient of kinetic friction, uk?
You pull on a crate using a rope as image, except the rope is at an angle of 20.0 ∘ above the horizontal. The weight of the crate is 325 N, and the coefficient of kinetic friction between the crate and the floor is 0.270. 1) Make 2 free body diagrams, 1 for the real forces, 1 for the components. 2) Write out the expressionfor Fnet for both the vertical and horizontal directions. 3) If you write out the expression for friction you now have 3 equation and 3 unkowns. What is the tension in the rope?
A young girl is riding a bicycle that has a total mass (including the kid) of 21.2 kg. The girl is moving at 5.99 m/s on a flat road when suddenly she slams on the brakes and skids to a stop in 8.22 meters. What was the magnitutde of the average force due to friction acting on the bicycle? Remeber, the magnitude of a force is always positive. Assume a constant friction force measured in Newtons and 3 significant digits in your answer.
In the (Figure 1) the coefficient of static friction between mass mAmA and the table is 0.50, whereas the coefficient of kinetic friction is 0.10. Ignore masses of the cord and the (frictionless) pulley. What minimum value of mAmA will keep the system from starting to move? Express your answer to two significant figures and include the appropriate units. What value of mAmA will keep the system moving at constant speed? Express your answer to two significant figures and include the appropriate units.
I was given this problem, and I don't really know what to do about the fact that the normal force doesn't equal the weight for this problem. How am I supposed to find the kinetic friction coefficient now? A box of mass 2,463g is on level ground being pulled by a force of 6.41N at angle 47.2 above horizontal. If the block is moving with a constant velocity, what is the kinetic friction coefficient? (Hint: the normal force does not always equal the weight; it does not in this case.)
Hey! I’m confused on how to do this problem, the worksheet is dealing with Newton’s Second Law of Motion. Can someone please help me? Thanks
I'm in desperate need for help on this worksheet! 1. Sketch a pulley system that will give a 2 to 1 mechanical advantage. Provide a free body diagram illustrating the key forces involved. 2. A 2 kg mass of steel is placed on a slate table that has a μS of 0.2 and a μK of 0.15. How much force must be applied horizontally to the table in order to start the mass moving? If enough mass is supplied to start the mass moving, what will it’s resulting acceleration be? How long will it take the mass to move 0.75 m? 3. A 2 kg mass of steel is placed on a steel incline table that has a μS of 0.23. How much force must be applied horizontally to the table in order to start the mass moving? 4. A 2 kg mass of steel is placed on a slate table that has a μS of 0.2. How much force must be applied at an angle of 300 to the table in order to start the mass moving? How much force must be applied at an angle of -300to the table in order to start the mass moving? 5. Please provide a plausible explanation…
Considering that now I have learned to solve for V & T. My next question is how would I solve for the magnitude & direction of the maximum static frictional force acting on the suitcase? I just began my Physics I course, in your opinion would you consider this word problem to be an intro to physics?
Projectile Motion and Conservation of Energy Derive a set of equations that perdict the x-position where the ball hits the ground (y=0). This expression should depend only on the measured parameters shown in Figure 1 below: h1, h2, h3, D, L and value change h' 1. Find the magnitude of launching velocity v by using the conservation of total mechancial energy (incorporating the estimate of the energy lost to friction. 2. Find the horizontal velocity vx vertical velocity vy by referring to referring to the geometry of the final section of the track. 3. Find the time the ball is in the air t by considering the vertical motion involving vy and h2 alone. 4. Finally find the rang x Steps 3 and 4 may be combined by using the trajectory equation y(x) obtained by eliminating the time in equations for y(t) and x(t).
For part B (answer is 0.28m) can you draw where the perpendicular distance between 48N forces is? And also can you show me the equation for part B? Because for part A (answer is 13.44N) I used M = Fx • Dy Fx is 84 kN and Dy is 16cm. I’m confused that the answer key for part B uses M = Fy • Dx M= 13.44 N•M Fy= 48 N I’m probably misunderstanding Dx at part B. So can you fully explain this question. Thank you!!!
Discovery,Discussion and writing 1.Use the formula x=1/32 v² sin 20 to explain why the projection angle that maximizes the distance a projectile traves is 0=45° when h0= 0. Please refer to the problem and figure.