Final answer:
When approaching a loaded pallet, the forks should be at the same height as the load to ensure safe and efficient handling. A trailer that bounces slowly is likely nearly empty as a loaded trailer would have less bounce. Lifting and lowering a box in a warehouse involves work against or with gravity.
Step-by-step explanation:
When approaching a loaded pallet with forks, the forks should be at the same height as the load. This ensures a smooth entry into the pallet without causing damage to the load or the pallet, and also prevents accidents that could result from the forks being either too high or too low. The forks may need to be slightly tilted backward to ensure stability once the load is lifted.
Moving on to physics-related observations in logistics, when you pass a freight truck and its trailer is bouncing up and down slowly, it is more likely that the trailer is nearly empty. A heavily loaded trailer would generally have less bounce because the weight of the cargo helps absorb the road's uneven surface, providing a cushioning effect.
Work Done on a Box in a Warehouse:
In the case of the 10 kg box being moved across a warehouse, work is done on the box when it is lifted and lowered. Lifting the box 2 m off the floor requires work against gravity, while moving it on a frictionless conveyor does not require additional work once it is in motion. When the box is later lowered 1 m onto a shelf, energy is released as the box descends.