In an inertial frame of reference, a series of experiments is conducted. In each experiment, two or three forces are applied to an object. The magnitudes of these forces are given. No other forces are acting on the object. In which cases may the object possibly remain at rest? The forces applied are as follows: Check all that apply. ► View Available Hint(s) 2 N; 2 N 200 N; 200 N 200 N; 201 N D 2 N; 2 N; 4 N O 2N; 2 N; 2 N O2N; 2 N; 3 N 2 N; 2 N; 5 N 200 N; 200 N; 5 N

In an inertial frame of reference, a series of experiments is conducted. In each experiment, two or three forces are applied to an object. The magnitudes of these forces are given. No other forces are acting on the object. In which cases may the object possibly remain at rest? The forces applied are as follows: Check all that apply. ► View Available Hint(s) 2 N; 2 N 200 N; 200 N 200 N; 201 N D 2 N; 2 N; 4 N O 2N; 2 N; 2 N O2N; 2 N; 3 N 2 N; 2 N; 5 N 200 N; 200 N; 5 N

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 1P: A force F applied to an object of mass m1 produces an acceleration of 3.00 m/s2. The same force...

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A force F applied to an object of mass m1 produces an acceleration of 3.00 m/s2. The same force applied to a second object of mass m2 produces an acceleration of 1.00 m/s2. (a) What is the value of the ratio m1/m2? (b) If m1 and m2 are combined into one object, find its acceleration under the action of the force F.
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 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.
Four forces act on an object, given by A = 47.3 N east, B = 50.3 N north, C = 84.7 N west, and D = 62.7 N south. (Assume east and north are directed along the +x-axis and +y-axis, respectively.) What is the magnitude of the net force (in N) on the object? and What is the direction of the force? (Enter your answer in degrees counterclockwise from the +x-axis.)
Two blocks of masses m1 = 3 kg and m2 = 4 kg are placed on a frictionless horizontal surface and joined by a robe of negligible mass. A constant horizontal force F = 20 N is applied to m2 as shown in figure. What are the magnitude of the acceleration of the system, the tension in the robe and the normal forces acting on m1 and m2?
A block with a mass of m = 48 kg rests on a frictionless surface and is subject to two forces acting on it. The first force is directed in the negative x-direction with a magnitude of F1 = 10.5 N. The second has a magnitude of F2 = 21.5 N and acts on the body at an angle θ = 12° measured from horizontal, as shown. 1) Draw the correct free body diagram 2)Write an expression for the component of net force, Fnet,x, in the x-direction, in terms of the variables given in the problem statement. 3)Write an expression for the magnitude of the normal force, FN, acting on the block, in terms of F2, g, and the other variables of the problem. Assume that the surface it rests on is rigid. 4)
Which of the following statements is not one of Newton’s Laws on motion? a. In the absence of an unbalanced force, an object moves at constant velocityb. For any force there is always an equal but opposite reaction force.c. The force and the acceleration of a body are towards the same direction.
Four forces act on an object, given by A = 38.3 N east, B = 30.3 N north, C = 76.7 N west, and D = 66.7 N south. (Assume east and north are directed along the +x-axis and +y-axis,respectively.) What is the magnitude of the net force (in N) on the object? What is the direction of the force? (Enter your answer in degrees counterclockwise from the +x-axis.)
A block with a mass of m = 12 kg rests on a frictionless surface and is subject to two forces acting on it. The first force is directed in the negative x-direction with a magnitude of F1 = 10.5 N. The second has a magnitude of F2 = 19 N and acts on the body at an angle θ = 21° measured from horizontal 1. Write an expression for the component of net force, Fnet,x, in the x-direction, in terms of the variables given in the problem statement. 2. Write an expression for the magnitude of the normal force, FN, acting on the block, in terms of F2, g, and the other variables of the problem. Assume that the surface it rests on is rigid. 3. Find the block's acceleration in the x-direction, ax, in meters per second squared.
A block that weighs 60 N is intially at rest on a horizontal surface. A horizontal force F1 of magnitude 22 N and a vertical force F2 are then applied to the block. The coefficients of friction for the block and the surface are us = 0.50 and uk = 0.25. Determine the magnitude of the frictional force acting on the block if the magnitude of F2 is (a) 10 N, (b) 20 N
A block with a mass of m = 15 kg rests on a frictionless surface and is subject to two forces acting on it. The first force is directed in the negative x-direction with a magnitude of F1 = 9.5 N. The second has a magnitude of F2 = 18 N and acts on the body at an angle θ = 18° measured from horizontal, as shown. 1) Please draw the correct free body diagram. 2)
A block with a mass of m = 46 kg rests on a frictionless surface and is subject to two forces acting on it. The first force is directed in the negative x-direction with a magnitude of F1 = 10.5 N. The second has a magnitude of F2 = 23.5 N and acts on the body at an angle θ = 23° measured from horizontal, as shown. a) Write an expression for the component of net force, Fnet,x, in the x-direction, in terms of the variables given in the problem statement. b)Write an expression for the magnitude of the normal force, FN, acting on the block, in terms of F2 and the other variables of the problem. Assume that the surface it rests on is rigid. c)Find the block's acceleration in the x-direction, ax, in meters per second squared.