A 2,000 kg steel beam is lifted evenly by two vertical slings attached to a spreader bar. Calculate the tension in each sling leg.

The same 2,000 kg load is now lifted using a two-leg bridle sling. Each sling leg is 3 meters long, and the horizontal distance between the lifting hook and the attachment point is 1.5 meters, resulting in a 60-degree angle from the horizontal. Calculate the tension in each sling leg.

A rigger attempts to lift the same 2,000 kg load but uses very short slings, creating a dangerous 15-degree angle relative to the horizontal. Calculate the tension in each sling leg to demonstrate why this is prohibited.

A delivery driver stacks pallets of bricks 4 tiers high on an uneven, uncompacted dirt surface near an excavation. Following a heavy rain, the soil shifts, and the 4,000 kg stack collapses into the trench, crushing a worker.

A crane is lifting a bundle of rebar using a synthetic web sling. Halfway through the lift, the sling snaps, dropping the load. Post-accident investigation reveals a small 1-inch cut on the edge of the sling webbing.