Non-equilibrium applications of Newton's Laws of motion

AI Thread Summary
To determine the net force acting on a 1380 kg car that decelerates from 27 m/s to 17 m/s over 8 seconds, first calculate the acceleration using the change in velocity over time. The acceleration is negative, indicating a deceleration. Once the acceleration is found, apply Newton's second law (F = m * a) to find the net force. The direction of the force will be opposite to the direction of motion, which is due east. This approach effectively utilizes Newton's laws in a non-equilibrium scenario.
Mitsuki
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Homework Statement


A 1380kg car is moving due east with an initial speed of 27 m/s . after 8.00s the car has slowed down to 17.0 m/s . Find the magnitude and direction of the net force that produces the deceleration


Homework Equations


Net force of x= MAx
Net force of y= MAy


The Attempt at a Solution


I am not sure how to start this question. Can anyone give me hints to start out this questions?
 
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You know the mass, and can find the acceleration with the given data.
 
Mitsuki said:

Homework Statement


A 1380kg car is moving due east with an initial speed of 27 m/s . after 8.00s the car has slowed down to 17.0 m/s . Find the magnitude and direction of the net force that produces the deceleration


Homework Equations


Net force of x= MAx
Net force of y= MAy


The Attempt at a Solution


I am not sure how to start this question. Can anyone give me hints to start out this questions?


Ok, you know the Velocity change in a certain amount of time.This is actually what we call "acceleration" and as you know if there is an acceleration then there must be a force acting in these conditions.So i advice you to calculate the acceleration then use Newton's 2nd law (F=m.a)...
 

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