Final answer:
Hard steering can be caused by low tire pressure, loose or worn suspension components, and misalignment of wheels; all these factors can negatively affect handling and safety.
Step-by-step explanation:
Hard steering in a vehicle can be caused by several factors that impact vehicle handling and safety. Factors including low tire pressure, loose or worn suspension components, and misalignment of wheels can all contribute to hard steering. To ensure safe handling of a vehicle, it is vital to maintain proper tire pressure, keep suspension components in good condition, and ensure that wheels are well aligned.
In the context of vehicle dynamics and Newton's laws of motion, these factors impact the forces acting on the vehicle. For example, when turning a corner, vehicles experience centripetal force, which keeps them on the curved path. Adequately balanced weight and proper wheel alignment are crucial for managing these forces effectively and maintaining control of the vehicle.