To draw a free body diagram for a load being lifted by a crane at a constant speed, we include the tension in the cable and the weight of the load.
To draw a free body diagram for the load lifted by a crane, we need to identify and represent all the forces acting on the load.
In this case, the load is being lifted at a constant speed, so the forces involved will be the tension in the crane cable and the weight of the load.
The tension in the cable acts upwards, opposing the weight of the load, which acts downwards.
The magnitudes of these forces will be equal when the load is being lifted at a constant speed.
Therefore, on the free body diagram, we would represent the tension force pointing upwards from the load and the weight force pointing downwards. Both forces will have equal magnitudes.