A 12kg child is riding in the chair, attached to the car seat. the car is involved in head on collision with another car. The initial speed of the car is 45km/h, and this speed is reduces to zero during the collision time of .20 s. Assume a constant car deceleration during the collision. estimate / calculate the net force?How do we calculate or estimate the net force?
use the impulse formula: (mass)*(initial_velocity)-(mass)*(initia鈥?br>
you have all of the information to solve thisHow do we calculate or estimate the net force?
Initial velocity 45000/3600 = 12.5 m/s
Average Deceleration = 12.5/.2 = 62.5 m/s^2 from v=u-at with v=0
This is almost 6g!
Average collision force on child = 12*62.5 = 750 N.
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