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 meter per second. If this can be reduced to 1.3 meter per second or less, the hip will usually not fracture. One way to do this is by wearing elastic hip pads.
Part A If a typical pad is 5.0 centimeter thick and compresses by 2 centimeter during the impact of a fall, Find what acceleration does the hip undergo to reduce its speed to 1.3 m/s?
Part B Obtain what acceleration does the hip undergo to reduce its speed to 1.3 m/s?
Part C The acceleration you found in part A may seem like a rather large acceleration, but to fully assess its effects on the hip, determine how long it lasts.