distance covered from skid mark, S = 65m
deceleration (means negative acceleration) , a = - 4 m/s2
Vf (final speed) of car = 0 m/s
Vi ( initial speed of car before braking) = ?
from equation of motion:
Vf2 - Vi2 = 2*a*S
0 - Vi2 = 2*( -4)* 65
Vi = 22.80 m/s
PLEASE HELP!! In coming to a stop, a car leaves skid marks 65 m long on...
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