Asked by bl
a car traveling at a velocity of 90 km/h, when you see a dog step into the road 50 m ahead. you hit the breaks hard to get maximum deceleration of 7.5 m/s^2. how far will you travel before stopping?
Answers
Answered by
Henry
Vo = 90000m/h * (1/3600)h/s = 25m/s.
Vf^2 = Vo^2 + 2ad,
d = (Vf^2 - Vo^2) / 2a,
d = (0 - (25)^2) / -15 = 41.7m. before stopping.
Vf^2 = Vo^2 + 2ad,
d = (Vf^2 - Vo^2) / 2a,
d = (0 - (25)^2) / -15 = 41.7m. before stopping.
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