A car traveling 91 km/h is 280 m behind a truck traveling 76 km/h.

How long will it take the car to reach the truck?

speed of car = 95 km/h

speed of truck = 75 km/h

relative speed of car with respect to truck = 95 - 75 = 20 km/h

now we will convert it into m/s

now time to cross the truck will be given as

time = 19.8 s

so it will take 19.8 s to cross the truck