Asked by thaokieu

High-performance race cars can accelerate from 0 m/s to 27 m/s (60 mi/h) in about 4 s. To see how large the acceleration due to gravity is, determine the time required for an object dropped from rest to attain a speed of 27 m/s. Ignore air resistance.
Answered by Damon
v = g t
27 = 9.8 t
t = 27/9.8 about 2.7 seconds
Answered by Anonymous
gyugyg
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