Question

A car traveling 88 km/h is 80 m behind a truck traveling 75 km/h. How long will it take the car to reach the truck

Answer 1

v1=88 km/h =88000/3600=24.4 m/s
v2= 75 km/h =75000/3600=20.8 m/s.
v1•t-v2•t=80
t=80/(v1-v2) =80/(24.4-20.8) = 22.43 s.