Question

In a workshop,one end of a chain is attached to a wall and the other end to an engine of mass of 400kg. A rope is also attached to the engine at the same point and a force is applied in order to lift the engine. To keep the engineat restin the position shown in the diagram a force F must be applied. Write down the resultant force on the engine where force a F is applied so that the engine is stationary

Answer 1

The resultant force can be found as a vector sum of other force:

$$\vec F_\text{net}=m\vec g+\vec T_1+\vec T_2,$$

where T₁ and T₂ are tensions.