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Veronika [31]
3 years ago
7

When you sneeze, the air in your lungs accelerates from rest to 155 km/h in approximately 0.70 s . what is the acceleration of t

he air in m/s2?
Physics
1 answer:
ollegr [7]3 years ago
6 0
<span>62 m/s^2 First, convert 155 km/h to m/s 155 km/h * 1000 m/km / 60 min/h / 60 s/h = 43.05556 m/s Now take the speed in m/s and divide by the number of seconds it took to accelerate it to that speed. 43.05556 m/s / 0.70 s = 61.5 m/s^2 Since we only have 2 significant figures, round the result to 2 figures. 61.5 m/s^2 = 62 m/s^2</span>
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