Question

the stopping distance of a car is 40 metre when moving with a speed of 80 km per hour if the car is now moving with 40 km per hour then what will be its stopping distance?​

Answer 1

Answer:

Stopping distance is equals to square of velocity divided by 2 retardation and if retardation is same then stopping distance is directly proportional to square of velocity 40/s=80*80/40*40

S=40/4 = 10m