Final answer:
Placing your hand near the top of the steering wheel when backing gives you more control and leverage for smoother and more accurate steering movements. It also reduces the risk of injury in case of an accident.
Step-by-step explanation:
When backing a car, it is recommended to place your hand near the top of the steering wheel because it gives you more control and leverage over the steering. This allows for smoother and more accurate steering movements, especially when maneuvering in tight spaces. Placing your hand near the top of the steering wheel also reduces the risk of your arm crossing over the deploying airbag in case of an accident.