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mmh A boat has a mass of 6800 kg. Its engines generate a drive force of 4100 N due west, while the wind exerts a force of 800 N due east andthe water exerts a resistive force of 1200 N due east. What are the magnitude and direction of the boat’s acceleration?

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$+0.31 \mathrm{m} / \mathrm{s}^{2}$due west

Physics 101 Mechanics

Chapter 4

Forces and Newton’s Laws of Motion

Newton's Laws of Motion

Applying Newton's Laws

University of Washington

Hope College

University of Sheffield

Lectures

03:28

Newton's Laws of Motion are three physical laws that, laid the foundation for classical mechanics. They describe the relationship between a body and the forces acting upon it, and its motion in response to those forces. These three laws have been expressed in several ways, over nearly three centuries, and can be summarised as follows: In his 1687 "Philosophiæ Naturalis Principia Mathematica" ("Mathematical Principles of Natural Philosophy"), Isaac Newton set out three laws of motion. The first law defines the force F, the second law defines the mass m, and the third law defines the acceleration a. The first law states that if the net force acting upon a body is zero, its velocity will not change; the second law states that the acceleration of a body is proportional to the net force acting upon it, and the third law states that for every action there is an equal and opposite reaction.

03:43

In physics, dynamics is the branch of physics concerned with the study of forces and their effect on matter, commonly in the context of motion. In everyday usage, "dynamics" usually refers to a set of laws that describe the motion of bodies under the action of a system of forces. The motion of a body is described by its position and its velocity as the time value varies. The science of dynamics can be subdivided into, Dynamics of a rigid body, which deals with the motion of a rigid body in the frame of reference where it is considered to be a rigid body. Dynamics of a continuum, which deals with the motion of a continuous system, in the frame of reference where the system is considered to be a continuum.

03:12

mmh A boat has a mass of 6…

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$\mathrm{mmh}$ A boat has …

03:39

MMH A boat has a mass of 6…

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A boat has a mass of 6800 …

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The force exerted by the w…

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Concept Simulation 4.1 at …

08:11

A $325-\mathrm{kg}$ boat i…

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02:10

Two people are pulling a b…

02:06

A sailboat, tied to a moor…

in this question that our three forces acting on a boot, one force acting towards the east direction with 4000 and 100 neuters another force acts to the east direction. We state 100 noodles on the third force acts to the each direction With 1000 and 200 Newtons, this force is produced by the votes and giant. This force is producing by the wind and this forces produce it by the resistance of the water. Then what are the magnitude and the direction off the boats exploration? What you have to do before doing anything else is to discover one is the net force that acts on that boat. Then that force is Halloween. That's next because to the some off the street forces let us see that everyone that is going to tease this positive then as a consequence, everyone responding to the West will be negative. This is a choice. These will not change. If you mix up the problem, then the net force is He goes to 800 blood, 1200 plus not blush. Now we have a minus because these forces is pointing to the West direction which is the negative connection so minus 4000 and 100 and this gives us a net force. That is the question of minors. 2000 and 100 new tops. Now we can use Newton's second law to copulate acceleration off that boat. According to Newton's second hole, the net force being close to the master kind exploration off the boat. We know what is the matter of the boat. Then we can Copley the acceleration as follows. Operation off the boat will be equal to the net force divided by that match off the boot. This is a question minus 2100 divided by 6800. Then this gives us an acceleration off approximately minus zero 0.31 meters. 1st 2nd square, then acceleration magnitude is 0.31 meters per second and it has a negative sign in front of it. For the direction of acceleration is the negative direction, which the way direction, So the answer it will be. The following inactivation is 0.31 meters per second squared do west

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