a) It takes [[$ 10 $]] s for a pedestrian to cross the street. By what distance does a car travelling at [[$ 50 $]] km / h approach the pedestrian during this time?

A car driving [[$ 50 $]] km / h approaches the pedestrian by:


[[$ s ≈ $]] m

b) A car traveling at [[$ 100 $]] km / h is approaching the pedestrian from [[$ 50 $]] m away. How long does it for the car to pass before a pedestrian can cross the road?

The pedestrian has to wait for:


[[$ t = $]] s