A truck with a mass of 20 t, has a tractive resistance of 280 N/t if the truck travels at a speed of 72 KM/h

1. Calculate the total tractive resistance of the truck

To calculate the total tractive resistance of the truck, we need to multiply the tractive resistance per ton (280 N/t) by the total mass of the truck (20 t).

The equation to calculate the total tractive resistance is:

Total Tractive Resistance = Tractive Resistance per ton * Mass of the truck

Total Tractive Resistance = 280 N/t * 20 t

Now, let's calculate it:

Total Tractive Resistance = 5600 N

Therefore, the total tractive resistance of the truck is 5600 N.