The discussion focuses on calculating the work done by frictional forces to decelerate a 1000 kg car from an initial speed of 24.9 m/s to a complete stop. Participants emphasize using energy methods to analyze the car's mechanical energy before and after the deceleration. The frictional force must equal the force required to reduce the car's speed to zero, which can be calculated using the work-energy principle.
PREREQUISITESStudents in physics, automotive engineers, and anyone interested in understanding the principles of motion and energy transfer in vehicles.
If you are familiar with energy methods, you should start there. Look at the car's mechanical energy at the beginning and at the end of its motion. Assume level ground.ecthelion4 said:Homework Statement
How much work must be done by frictional forces in slowing a 1000kg car from 24.9 n/s to rest
Homework Equations
The Attempt at a Solution
I just never fully understood how slowing down worked. I just need a nudge in the right direction not you guys doing the work for me. I don't think I'm supposed to do a force analysis, but then again I don't know how to do the problem.