How to find braking force of a car

[wrangler407]

the weight of a car is 700 kg
the weight put on the brake pedal is around 30 kg to stop the vehicle moving with a speed of 50km/hr.
please help me out.

 

[tiny-tim]

welcome to pf!

hi wrangler407! welcome to pf!

what is the full question?

 

[mrspeedybob]

That's not even close to enough information. How much assist does the brake booster provide? What is the diameter of the master cylinder? What are the diameters of the caliper pistons? Does the car use disc or drum brakes in the rear? basically we'd need every detail of the brake design as well as tire and road surface informatin.

 

[russ_watters]

You just need the time or distance...

 

[falcon32]

Homework question?