Traumatic brain injury such as concussion results when the head undergoes a very large acceleration. Generally, an accel

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Traumatic brain injury such as concussion results when the headundergoes a very large acceleration. Generally, an accelerationless than 800 m/s2 lasting for any length oftime will not cause injury, whereas an acceleration greaterthan 1,000 m/s2 lasting for at least 1ms will cause injury. Suppose a small child rolls off a bedthat is 0.54 m above the floor. If the floor ishardwood, the child's head is brought to rest inapproximately 2.1 mm. If the floor is carpeted, thisstopping distance is increased toabout 1.4 cm. Calculate the magnitude and durationof the deceleration in both cases, to determine the risk of injury.Assume the child remains horizontal during the fall to the floor.Note that a more complicated fall could result in a head velocitygreater or less than the speed you calculate.

Traumatic Brain Injury Such As Concussion Results When The Head Undergoes A Very Large Acceleration Generally An Accel 1 (36.05 KiB) Viewed 55 times

hardwood floor magnitude  hardwood floor duration  carpeted floor magnitude  carpeted floor duration ​m/s2msm/s2ms​