2359 Materingphysics Chapter 02 . Google Chrome Seare l https:/ Chapter 02 Probl

Question

2359 Materingphysics Chapter 02 . Google Chrome Seare l https:/ Chapter 02 Problem 2.50 myct/itemView?assignmentProblemiD-890749498 offset-prev Constants Part A When you sneeze, the air in your lungs accelerates rom rest to approximately 130 km/hr in about 0 55 seconds What is the acceleration of the air in m/s2 Express your answer using two significant figures Submit Request Answer PartB What is this acceleration, in units of g Express your answer using two significant figures Submit Request Answer T-PA

Explanation / Answer

According to the given problem,

a) Using kinamatics relation,

v = u+ at [u =0 as its start from rest]

v = at

a = v/t

a = 130*(5/13)/0.55s

a = 90.909 m/s2

a = 91 m/s2

b) Units of g,

a = 91m/s2

a = 91/9.81

a = 9.266g

a = 9.3g

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