The problem involves calculating the net force acting on a car that is braking to a stop. The car's mass and initial velocity are provided, along with the distance over which it comes to a stop. The discussion revolves around the application of kinematic equations and the relationship between force, mass, and acceleration.
Participants are actively engaging with each other's reasoning and attempting to clarify misunderstandings. Some guidance has been provided regarding the use of kinematic equations, and there is an ongoing exploration of the correct approach to determine the net force.
There is a noted confusion regarding the timing of the car's deceleration and the implications of using constant speed equations in a scenario where the car is slowing down. Participants are also addressing discrepancies in calculated force values.
That equation relates time to the distance traveled at a constant speed.yogoes123 said:
You [somehow] worked out a figure of 624.8Nyogoes123 said:
As I emphasised "at a constant speed". At no time here is the vehicle traveling at a fixed speed, the vehicle is constantly slowing.yogoes123 said:
At the 729m mark, it is motionless.yogoes123 said:
