Final answer:
Most collisions occur at curves because the speed on the approach is too great. Drivers need to reduce their speed to navigate curves safely.
Step-by-step explanation:
In the context of physics, most collisions occur at curves because the speed on the approach is too great. When a vehicle is traveling at a high speed while approaching a curve, it may not be able to negotiate the curve safely, resulting in a collision.
The greater the speed, the less time there is to react and adjust the direction of the vehicle to match the curve. This can lead to the vehicle going off course and crashing.
For safer navigation of curves, it is important for drivers to reduce their speed and approach the curve with caution.