Understanding momentum is really important for making cars safer. Here are some key points to know:
What is Momentum? Momentum is a way to measure how much motion an object has. It's calculated by multiplying an object’s weight (called mass) by how fast it is going (called velocity). For example, a typical car weighs about 1500 kg.
Crash Statistics: When cars crash at high speeds (over 50 km/h), the chances of someone dying are much higher. At 80 km/h, there is a 50% chance that a person could die in the crash.
Energy Absorption: Cars have special parts called crumple zones. These areas crumple or fold up during a crash. This helps to slow down the collision and change the car’s momentum more gradually, which can help reduce injuries.
Safety Features: Seatbelts are very important. They help to lower the impact of the crash on passengers. Using a seatbelt can reduce the risk of serious injury by about 45%.
By knowing and improving these ideas, we can help make cars safer for everyone.
Understanding momentum is really important for making cars safer. Here are some key points to know:
What is Momentum? Momentum is a way to measure how much motion an object has. It's calculated by multiplying an object’s weight (called mass) by how fast it is going (called velocity). For example, a typical car weighs about 1500 kg.
Crash Statistics: When cars crash at high speeds (over 50 km/h), the chances of someone dying are much higher. At 80 km/h, there is a 50% chance that a person could die in the crash.
Energy Absorption: Cars have special parts called crumple zones. These areas crumple or fold up during a crash. This helps to slow down the collision and change the car’s momentum more gradually, which can help reduce injuries.
Safety Features: Seatbelts are very important. They help to lower the impact of the crash on passengers. Using a seatbelt can reduce the risk of serious injury by about 45%.
By knowing and improving these ideas, we can help make cars safer for everyone.