The discussion revolves around calculating the coefficient of friction for a car skidding down an 8% grade hill over a distance of 30 meters, with the car initially traveling at 25 MPH or more.
The discussion is active with various interpretations being explored. Some participants have offered guidance on drawing diagrams and applying Newton's second law, while others are questioning the assumptions and definitions related to the problem.
There is a mention of specific speed conversion and the need for a diagram to illustrate the forces acting on the car, indicating that certain information may be necessary for a complete analysis.
Assemble the usual suspects: Draw a diagram showing all the forces acting on the car. Apply Newton's 2nd law to relate the net force to the acceleration. Use kinematics or work/energy to compute the acceleration. (Pick a specific speed: convert 25 mph to m/s.)Narayanswamy said:If a driver traveling down an 8% grade hill slams down the brakes of his car and skids 30 meters, what is the coefficient of friction ( assuming he was traveling at 25 MPH or more)?
Appreciate your help asap.