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ssm mmh A 1580-kg car is traveling with a speed of 15.0 m/s. What is the magnitude of the horizontal net force that is required to bring the car to a halt in a distance of 50.0 m?

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3560 $\mathrm{N}$

Physics 101 Mechanics

Chapter 4

Forces and Newton’s Laws of Motion

Newton's Laws of Motion

Applying Newton's Laws

Rutgers, The State University of New Jersey

University of Washington

University of Winnipeg

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.

01:36

ssm mmh A 1580-kg car is t…

02:30

A 1580-kg car is traveling…

01:58

Interactive LearningWare 4…

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Interactive LearningWare $…

01:23

ssm A $1380-\mathrm{kg}$ c…

01:45

(a) Find an equation to de…

A 970.-kg car starts from …

02:02

A 1380-kg car is moving du…

A $1500 \mathrm{kg}$ car i…

02:53

(a) What force is required…

08:13

02:03

A car is driven at $60 \ma…

Newton's second law tells us that the net force it's not, is equal to the match off the car. Times declaration. We know the math of the car is equals. True, one, 580 kilo grams. It isn't with a play about acceleration. Now we have to calculate what is the relation of this car? How can we do that? Well, we have the variation in the velocity and we have the displacement that happen why August velocity was creating. But we don't know what is the time interval in between these three events. So when you don't have time, we used to return his equation, which in the following the final Velocity Square is equal to the initial velocity squared quest to times declaration, times displacement. So in this question, the final velocity is close to zero. The initial velocity vehicles to 15. Um, we have two times declaration that we want to calculate times the displacement off 50 meters. Then we go minus two times declaration times 50 whose egos to 15 square miners. Because we've sent this turn to the other side. Then we get it that the acceleration is because two minors it's been squared divided by two times 50. We just sent both the truth and the 50 to another side. The hiding. Then acceleration is equal to minus if squared, divided by 100. And this is equally true. Minus 225 divided by 100 which is minors to going 25 meters per second. Squared the observations negative because the velocity is being reduced. Then we can plug in the velocity that we have just calculated. Even you turn second law equation to get the following that horse that's next is he goes to 150 times minus two point point five. This gives us a net force approximate minus 3560 new toes.

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