Calculating Braking Time for 800 kg Car

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    Braking Car Time
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Homework Help Overview

The discussion revolves around calculating the braking time for an 800 kg car that is slowing down from an initial speed of 34 m/s, given a braking force of 4.4 kN. The subject area includes concepts from dynamics and kinematics.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • Participants are exploring the relationship between force, mass, and acceleration, with one participant attempting to recall relevant equations. There is a focus on identifying the necessary equations to solve the problem.

Discussion Status

The discussion is ongoing, with participants providing hints and prompting each other to recall important equations related to the problem. There is no explicit consensus yet, but some guidance has been offered regarding the equations needed.

Contextual Notes

Participants are navigating through the problem without providing complete solutions, and there is an emphasis on understanding the relationships between the variables involved.

lindzpooh
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so lost! help!

Homework Statement



The brakes of an 800-kg car exert a force of 4.4kN. (a) how long will the brake take to slow the car to a stop from an initial speed of 34m/s

Homework Equations





The Attempt at a Solution

 
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Hi there lindzpooh and welcome to the forums,

Do you know a (quite famous) equation that links force, mass and acceleration?
 
i know mass is E0=Mc2
acceleration= change in speed/time interval
 
Yes, your second one will be useful, but you need another one as well, Newton thought of it I believe...
 

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