A block m, rests on a surface. A second block m, sits on top of the first block, A horizontal force F applied to the bottorn block pulls both blocks at constant velooty, Here m, -m. (e) What is the normal force exerted by the surftace on the bottom block? (Use the following as necessary: m and g as necessary.) N - (b) What is the normal force exerted by the bottom block on m,? (Use the following as necessary:m and g as necessary.) (c) How would your answers to parts (a) and (b) change if m, = 4m and m, = m? O N, - Smg, N- 3mg O N, - Smg, N, - Amg O N, - 2mg, N, - 2mg ON, - Smg, N, - mg (d) How would your answers to parts (a) and (b) change if m, - m and m, = 4m? ON,- Smg, N = mg N- 2mg, N,- 2mg

A block m, rests on a surface. A second block m, sits on top of the first block, A horizontal force F applied to the bottorn block pulls both blocks at constant velooty, Here m, -m. (e) What is the normal force exerted by the surftace on the bottom block? (Use the following as necessary: m and g as necessary.) N - (b) What is the normal force exerted by the bottom block on m,? (Use the following as necessary:m and g as necessary.) (c) How would your answers to parts (a) and (b) change if m, = 4m and m, = m? O N, - Smg, N- 3mg O N, - Smg, N, - Amg O N, - 2mg, N, - 2mg ON, - Smg, N, - mg (d) How would your answers to parts (a) and (b) change if m, - m and m, = 4m? ON,- Smg, N = mg N- 2mg, N,- 2mg

Name: A block m, rests on a surface. A second block m, sits on top of the f
Uploaded: 2024-03-20T06:57:57.000Z
Channel: Bartleby
Description: A block m, rests on a surface. A second block m, sits on top of the first block. A horizontal force F applied to the bottorn block pulls both blocks at constant velocity. Here m, m, = m.mm(a) What is the normal force exerted by the surface on the bo

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 49P: In Example 4.5, we pushed on two blocks on a table. Suppose three blocks are in contact with one...

See similar textbooks

Similar questions

For the woman being pulled forward on the toboggan in Figure 4.33, is the magnitude of the normal force exerted by the ground on the toboggan (a) equal to the total weight of the woman plus the toboggan, (b) greater than the total weight, (c) less than the total weight, or (d) possibly greater than or less than the total weight, depending on the size of the weight relative to the tension in the rope?
A 3.00-kg object is moving in a plane, with its x and y coordinates given by x = 5t2 1 and y = 3t3 + 2, where x and y are in meters and t is in seconds. Find the magnitude of the net force acting on this object at t = 2.00 s.
A 6.0-kg object undergoes an acceleration of 2.0 m/s2. (a) What is the magnitude of the resultant force acting on it? (b) If this same force is applied to a 4.0-kg object, what acceleration is produced?
An object experiences no acceleration. Which of the following cannot be true for the object? (a) A single force acts on the object. (b) No forces act on the object. (c) Forces act on the object, but the forces cancel.
Give reasons for the answers to each of the following questions: (a) Clan a normal force be horizontal? (b) Can a normal force be directed vertically downward? (c) Consider a tennis ball in contact with a stationary floor and with nothing else. Can the normal force be different in magnitude from the gravitational force exerted on the ball? (d) Can the force exerted by the floor on the hall be different in magnitude from the force the ball exerts on the floor?
A 3.00-kg block starts from rest at the top of a 30.0 incline and slides a distance of 2.00 m down the incline in 1.50 s. Find (a) the magnitude of the acceleration of the block, (b) the coefficient of kinetic friction between block and plane, (c) the friction force acting on the block, and (d) the speed of the block after it has slid 2.00 m.
In Example 4.5, we pushed on two blocks on a table. Suppose three blocks are in contact with one another on a frictionless, horizontal surface as shown in Figure P4.49. A horizontal force F is applied to m1. Take m1 = 2.00 kg, m2 = 3.00 kg, m3 = 4.00 kg, and F = 18.0 N. (a) Draw a separate free-body diagram for each block. (b) Determine the acceleration of the blocks. (c) Find the resultant force on each block. (d) Find the magnitudes of the contact forces between the blocks. (e) You are working on a construction project. A coworker is nailing up plasterboard on one side of a light partition, and you are on the opposite side, providing backing by leaning against the wall with your back pushing on it. Every hammer blow makes your back sting. The supervisor helps you put a heavy block of wood between the wall and your back. Using the situation analyzed in parts (a) through (d) as a model, explain how this change works to make your job more comfortable. Figure P4.49
Consider the three connected objects shown in Figure P5.43. Assume first that the inclined plane is frictionless and that the system is in equilibrium. In terms of m, g, and , find (a) the mass M and (b) the tensions T1 and T2. Now assume that the value of M is double the value found in part (a). Find (c) the acceleration of each object and (d) the tensions T1 and T2. Next, assume that the coefficient of static friction between m and 2m and the inclined plane is s and that the system is in equilibrium. Find (e) the maximum value of M and (f) the minimum value of M. (g) Compare the values of T2 when M has its minimum and maximum values. Figure P5.43
Does the ground need to exert a force on you for you to jump off the ground, or do you need to exert a force on the ground? If the ground must exert a force on you, is that force greater than the force you exert on the ground?
A block of mass m1= 10 kg is on a frictionless table to the left of a second block of mass m2 = 24 kg, attached by a horizontal string (Figure WU4.13). If a horizontal force of 120 N is exerted on the block m2in the positive x-direction, (a) use the system approach to find the acceleration of the two blocks. (b) What is the tension in the string connecting the blocks? (See Section 4.6.) Figure WU4.13
A 9.00-kg hanging object is connected by a light, inextensible cord over a light, frictionless pulley to a 5.00-kg block that is sliding on a flat table (Fig. P5.7). Taking the coefficient of kinetic friction as 0.200, find the tension in the string. Figure P5.7
A block of mass m = 5.8 kg is pulled up a = 25 incline as in Figure P4.24 with a force of magnitude F = 32 N. (a) Find the acceleration of the bloc k if the incline is frictionless. (b) Find the acceleration of the block if the coefficient of kinetic friction between the block and incline is 0.10. Figure P4.24