If the traction force is 6.5 kN, then the work of this force on the path is 80 meters.

Given:

Fthroat = 6.5 kN – traction force of a certain body;

H = 80 meters – the path that the body has traveled under the action of the traction force.

It is required to determine A (Joule) – the work of the traction force on the path H.

Convert force units from kilonewtons to Newtons:

Fthrust = 6.5 kN = 6.5 * 1000 = 6500 Newtons.

Then the work of this force will be equal to:

A = Fthrust * H = 6500 * 80 = 520000 Joules (520 kJ).

Answer: the work of the traction force on a section of 80 meters is equal to 520,000 Joules (520 kJ).