What does the braking distance depend on?

The braking distance depends on the tyres, the braking system, and the road surface. Good tyre condition and the quality of the braking system directly affect how quickly your vehicle can come to a stop. The road surface—whether it is dry, wet, icy, or covered in gravel—also plays a major role. Slippery or uneven surfaces increase braking distance. So, all three factors you selected are correct and important to consider when thinking about how long it takes to stop your vehicle safely. Remember this for similar questions about braking and stopping distances in the future.