Falls resulting in hip fractures are a major cause of injury and even death to the elderly. Typically the hip's speed at impact is about 2.0m/s. If this can be reduced to 1.3m/s or less, the hip wil usually not fracture. One way to do this is by wearing elastic hip pads. (a) If a typical pad i 5.0 cm thick and compresses by 2.0 cm during the impact of a fall, what constant acceleration (i m/s²) does the hip undergo to reduce its speed from 2.0 m s to 1.3m/s (b) The acceleration you found in part (a) may seem rather large, but to assess its effects on the hip fully, calculate hov long it lasts. Note: convert cm to m first.
Falls resulting in hip fractures are a major cause of injury and even death to the elderly. Typically the hip's speed at impact is about 2.0m/s. If this can be reduced to 1.3m/s or less, the hip wil usually not fracture. One way to do this is by wearing elastic hip pads. (a) If a typical pad i 5.0 cm thick and compresses by 2.0 cm during the impact of a fall, what constant acceleration (i m/s²) does the hip undergo to reduce its speed from 2.0 m s to 1.3m/s (b) The acceleration you found in part (a) may seem rather large, but to assess its effects on the hip fully, calculate hov long it lasts. Note: convert cm to m first.
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