Traumatic brain injury such as concussion results when the head undergoes a very large acceleration. Generally, an acceleration less than 800 m/s2 lasting for any length of time will not cause injury, whereas an acceleration greater than 1000 m/s2 lasting for at least 1 ms will cause injury. Suppose a small child rolls off a bed that is 0.41 m above the floor. If the floor is hardwood, the child's head is brought to rest in approximately 1.8 mm. If the floor is carpeted, this stopping distance is increased to about 1.2 cm. Calculate the magnitude and duration of the deceleration in both cases, to determine the risk of injury. Assume that the child remains horizontal during the fall to the floor. Note that a more complicated fall could result in a head velocity greater or less than the speed you calculate.
Hardwood floor magnitude | m/s2 | duration | ms |
Carpeted floor magnitude | m/s2 | duration | ms |
Traumatic brain injury such as concussion results when the head undergoes a very large acceleration. Generally,...
Traumatic brain injury such as concussion results when the head undergoes a very large acceleration. Generally, an acceleration less than 800 m/s2 lasting for any length of time will not cause injury, whereas an acceleration greater than 1,000 m/s2 lasting for at least 1 ms will cause injury. Suppose a small child rolls off a bed that is 0.63 m above the floor. If the floor is hardwood, the child's head is brought to rest in approximately 1.7 mm. If...
Traumatic brain injury such as concussion results when the head undergoes a very large acceleration. Generally, an acceleration less than 800 m/s2 lasting for any length of time will not cause injury, whereas an acceleration greater than 1,000 m/s2 lasting for at least 1 ms will cause injury. Suppose a small child rolls off a bed that is 0.45 m above the floor. If the floor is hardwood, the child's head is brought to rest in approximately 1.8 mm. If...
6. Traumatic brain injury such as concussion results when the head undergoes a very large acceleration. Generally, an acceleration greater than 1000 ms lasting for at least 1 ms will cause traumatic injury. Suppose a small child rolls off a bed that is 0.42 m above the floor. Assume the child remains horizontal during the fall to the floor. If the floor is hardwood, the child's head is brought to rest in a distance of approximately 2.0 mm Note that...
-/10 points SerCP11 2.4.P.049. My Notes Ask Your Teacher Traumatic brain injury such as concussion results when the head undergoes a very large acceleration Generally, an acceleration less than 300 m/slasting for any length of time will not cause injury, whereas an acceleration greater than 1,000 m/s lasting for at least 1 ms will cause injury. Suppose a small child rolls off a bed that is 0.5 m above the foor. If the floor is hardwood, the child's head is...
A woodpecker's brain is specially protected from large decelerations by tendon-like attachments inside the skull. While pecking on a tree, the woodpecker's head comes to a stop from an initial velocity of 0.580 m/s in a distance of only 1.80 mm. (a) Find the acceleration in m/s2 and in multiples of g (g 9.80 m/s?). (Enter the magnitudes.) in m/s2 in multiples of g 9.54 93.4 m/s #8 (b) Calculate the stopping time (in s) 0.00621 (c) The tendons cradling...
A woodpecker’s brain is specially protected from large decelerations by tendon-like attachments inside the skull. While pecking on a tree, the woodpecker’s head comes to a stop from an initial velocity of 0.470 m/s in a distance of only 2.30 mm. Find the acceleration in m/s2 and in multiples of g (g = 9.80 m/s2) accleration: multiples of g: calculate the stopping time: The tendons cradling the brain stretch, making its stopping distance 5.06 mm (greater than the head and,...
A woodpecker's brain is specially protected from large decelerations by tendon-like attachments inside the skull. While pecking on a tree, the woodpecker's head comes to a stop from an initial velocity of 0.570 m/s in a distance of only 2.05 mm. PLEASE PROVIDE STEPS FOR EACH PART: A, B, and C. (a) Find the acceleration in m/s^2 and in multiples of g (g = 9.80 m/s2). (Enter the magnitudes.) in m/s^2 = ________ m/s^2 in multiples of g = ______...