Vo = 50mi/1h * 1h/3600s * 1600m/mi = 22.2 m/s.
d = 80-22.2*2 = 35.6 m. = distance from wall after 2-second reaction time.
a. V^2 = Vo^2+2a*d = 0
22.2^2-20d = 0
d1 = 24.6 m. = stopping point.
d2 = 35.6-24.6 = 11 m. from wall.
b. V = Vo+a*T = 0
22.2-10T = 0
T =
A driver traveling at 50mph is 80m from a wall ahead. If the driver applies the brake
immediately at a reaction time of 2 seconds and begins slowing the vehicle at 10m/s2.
a. Find the distance from the stopping point to the wall.
b. Determine the braking time or time during deceleration
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