Final answer:
It is true that higher speeds on open roads contribute to more fatalities because high-speed collisions result in more severe injuries, greater energy dissipation, and less reaction time for drivers.
Step-by-step explanation:
The statement that more deaths occur on the open road due to higher speed is generally considered true. High-speed collisions often result in more severe injuries and are more likely to be fatal than accidents at lower speeds.
When vehicles travel at high speeds, the energy that must be dissipated in a crash is significantly greater, leading to more serious damage and potential for injury or death. Additionally, drivers have less time to react to obstacles or changes in the road, making high-speed driving inherently riskier.
The correct answer is a. True. When an object is speeding up, its position vs time graph is a straight line. This is because the object is covering equal distances in equal intervals of time, resulting in a constant rate of change of position. An example of a position vs time graph of an object that is speeding up is a car accelerating from rest to a certain velocity in a straight line.