Tensile force calculator online - calculate with formula for a rope
Let's say you'd like to pull a car onto a trailer. You have a cable winch and would like to know if the pulling power of your cable winch is sufficient. Of course, several factors play a role here. The weight of the vehicle in combination with the rolling resistance coefficient, i.e. whether in the sand, on gravel or on whatever surface. The gradient also plays a role. Acceleration is unimportant here, only the weight force makes the physics, as every technician will confirm to you. How much force do you need to move the mass? You can convert the pulling force of the winch to the pulley principle by walking over a pulley. We deliberately neglect the speed factor here. You can also find deflection pulleys here in the shop. Our calculator will help you, you may put the calculator aside. We have taken the source for the rolling resistance coefficient from Wikipedia, and for the rolling resistance coefficient we have always chosen the mean value from this table.

The formula for calculating the tensile force is as follows:
Tensile force = weight x (sin (angle of gradient) + frictional resistance x cos (angle of gradient))