Question

12. The stopping distance of a vehicle under dry and wet conditions is shown below:
a. Will a person standing 100 m away from a car get hit under dry conditions if the car is
travelling at (i) 100 km/h and (ii) 120 km/h before the brake is applied? Explain
b. Why should one drive more slowly under wet conditions?​

Answer 1

Answer:

in any speed the car wont hit the man in dry conditions assuming the brakes are in good condition. for example if it is travelling at 100 or 120 km per hour and the driver notices the man and brakes it should stop in a giffy.

b. one should drive more slowly under wet conditions because when the road is wet the friction between the road and the tyres is reduced , hence it is harder to brake quickly under high acceleration. and also the visibility is reduced due to rain.