Final answer:
The condition of a vehicle riding on a film of water is known as hydroplaning.
Step-by-step explanation:
The condition of a vehicle riding on a film of water is known as hydroplaning. Hydroplaning occurs when a layer of water builds up between the tires of a vehicle and the road surface, causing a loss of traction. This can happen when there is heavy rain, wet roads, or when the tires are not properly inflated or have worn tread.
When a vehicle hydroplanes, it can become difficult to control, steer, and brake, which increases the risk of accidents. To prevent or minimize hydroplaning, drivers should reduce their speed, avoid hard braking or quick maneuvers, and ensure that their tires are in good condition and properly inflated.