A 65kg person traveling at 29m/s (65mph) collides head on with a jersey barrier. How much force in Newtons is experienced by the driver if they hit the airbag for 1s?
A 65kg person traveling at 29m/s (65mph) collides head on with a jersey barrier. How much force in Newtons is experienced by the driver if they hit the airbag for 1s?
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Question
A 65kg person traveling at 29m/s (65mph) collides head on with a jersey barrier. How much force in Newtons is experienced by the driver if they hit the airbag for 1s?
Expert Solution
Step 1
mass of person m=65kg
speed of person u=29m/s
after colliding with bat person comes to rest so final velocity v=0
time duration in which pesrson interact with airbag and comes to rest t=1s
accelration of person
here negative sign shows the acceleration in opposite direction of initial velocity.
we know F=ma
F=-1885N
again negative sign shows that force is experienced in opposite direction of motion.
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