Question

two cars p and q moving with velocity of 15m/s and 20m/s .from point o the distance of car p is 500m and the distance of car q is 400m .find the closest distance of car p and q and also find time when they become closest.(from point p to o distance is horizontal from o to q distance is vertical)​

Answer 1

Answer:

Closest distance : 0m, time t:20 sec from start

Explanation:

As the slower car 'p' is further ahead then the faster car 'q', they would cross by each other at a certain point. Hence the closest distance being 0m. This be achieved when the relative distance 100m (500-400) is covered by the relative speed 5m/s (20-15).