In the event of a collision between vehicles, the severity of injuries sustained by drivers can be reduced with an air bag. In a car initially traveling at +100 km / h, an air bag immobilizes a driver with a mass of 62 kg in 0.090 s. The magnitude of the average force exerted by the air bag on the driver is?
Let's first convert km/hr to m/s:
We can find the average force exerted by the air bag on the driver from the impulse-momentum change equation:
The magnitude of the average force exerted by the air bag on the driver equals The sign minus means that the average force exerted by the air bag on the driver directed in the opposite direction to the motion of the car.
Answer:
Comments