Asked by osama
during a collision, a driver of mass m in a car moving at speed v is brought to rest by an inflated air bag in time t. (a) write an equation showing the average force the air bag exerts on the driver. (b) suppose the mass of the driver is 55 kg, the initial speed of the car is 28 m/s, and the contact time with the air bag is 0.20 s. show that the average age force is 7700 N.
Answers
Answered by
Damon
momentum change = m v
force = rate of change of momentum
= m v/t
55 * 28/.2 = 7700
force = rate of change of momentum
= m v/t
55 * 28/.2 = 7700
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