the speed difference is 30 km/hr
in 40 minutes, car A has gone 50 km.
(i) 50km ÷ 30km/hr = 5/3 hr -- you figure the time
(ii) 50 + 5/3 * 75 = 175 km = 105 * 5/3
A Matatu left Nairobi a 7.00 Am for Kisumu at an average speed of 75km/h. A car also left Nairobi 40 minutes later for Kisumu along the same route at an average speed of 105 km/h (a) Determine (i) The time when the car caught up with the matatu (ii) the distance from nairobi when the car caught up with the matatu
1 answer
1 answer