Part A An object at rest cannot remain at rest unless which of the following holds? ► View Available Hint(s) The net force acting on it is zero. The net force acting on it is constant and nonzero. The forces acting on it remain constant. There is only one force acting on it. Submit Part B If a block is moving to the left at a constant velocity, what can one conclude ► View Available Hint(s) There is exactly one force applied to the block. The net force applied to the block is directed to the left. The net force applied to the block is zero. There must be no forces at all applied to the block.

Part A An object at rest cannot remain at rest unless which of the following holds? ► View Available Hint(s) The net force acting on it is zero. The net force acting on it is constant and nonzero. The forces acting on it remain constant. There is only one force acting on it. Submit Part B If a block is moving to the left at a constant velocity, what can one conclude ► View Available Hint(s) There is exactly one force applied to the block. The net force applied to the block is directed to the left. The net force applied to the block is zero. There must be no forces at all applied to the block.

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 3CQ: A person holds a ball in her hand. (a) Identify all the external forces acting on the ball and the...

See similar textbooks

Similar questions

Which of the following is incorrect regarding Newton's Third Law of Motion? A. A force acting on a body is always the results of its interaction with another body. B. Whenever two bodies interact, the two forces that they exert on each other are always equal in magnitude and direction. C. Forces always comes in pairs, that is for every action, there an equal but opposite reaction. D. The force exerted by a on bis equal to (-) force exerted by b on a
1. An object is moving at a constant velocity. All but one of the followingstatements could be true. Which one cannot be true? (a) No forces acton the object. (b) A single force acts on the object. (c) Two forces actsimultaneously on the object. (d) Three forces act simultaneously on theobject.
Which statement is most nearly the same as Newton's third law? A) If the net force acting on an object is zero, it does not accelerate. B) When you push on an object, it pushes back just as strongly on you. C) Acceleration of an object is proportional to net force divided by mass. D) When one object exerts a force on a second object, the first object exerts an equal force on itself in the opposite direction.
A block with a mass of m = 45 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. The second has a magnitude of F2 and acts on the body at an angle θ = 17° measured from horizontal, as shown. 1) 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. 2) The two forces change such that F1 = 9.5 N and F2 = 23.5 N. Based on this change, the block may no longer be in static equilibrium. Find the block's acceleration in the x-direction, ax, in meters per second squared.
A 1020 kg car is pulling a 285 kg trailer. Together, the car and trailer have an acceleration of 2.01 m/s2 in the forward direction. Neglecting frictional forces on the trailer, determine the following the force exerted by the trailer on the car?(d) the resultant force exerted by the car on the road magnitude direction
Starting from a standstill, Abi (mass = 55.00 kg) performs a vertical jump. b.) During the jump, a vertical ground reaction force of 660.00 N is exerted on her body. Assuming the ground reaction force and her weight are the only forces acting on her body in the vertical direction, what is the sum of the vertical forces acting on Abi during this jump?
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.
Two forces (F, and F2) act on an object, as shown above. Force vector F, has a magnitude of F1-5.7 N and is directed along the -y axis. Force vector F2 has a magnitude of F2 5.0 N, an x-component of F2x = 3.0N, and a y-component of F2y = 4.0 N. What is the magnitude of the net force acting on the object? Enter the numerical value in SI units.
An object of mass m1 = 5.00 kg placed on a frictionless, horizontal tableis connected to a string that passes over a pulley and then is fastened to ahanging object of mass m2 = 9.00 kg as shown. (a) Draw free-body diagrams of both objects. Find (b) the magnitude of the acceleration of the objects and (c) the tension in the string.
In a two-person bobsled race, the first few seconds of the run are crucial. During a practice run on a flat icesurface, where the coefficient of kinetic friction for the sled is 8.00 x 10^-3, the sled accelerates at 4.00 m/s^2[forward] when one person pushes with a force of 503 N [forward] and the second person pushes with a forceof 496 N [forward].(a) Describe the reaction force to the people pushing forward on the sled.(b) Describe the reaction force to the force of friction pulling backward on the sled.
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.
A force F1 of magnitude 6.00 units acts on an object at the origin in a direction u 5 30.0 degrees above the positive x-axis. A second force F2 of magnitude 5.00 units acts on the object in the direction of the positive y-axis. Find the magnitude and direction of the resultant F1 + F2. Show complete step-by-step process and solution.