Problem #6 (Extra Credit) The minimum distance required to stop a car moving at 35 km/hr...

Question

Question

Answer 1

Answer #1

Using equation

v^2 = u^2 + 2*a*d

u = 35*5/18 = 9.72 m/s

0 = 9.72^2 - 2*a*40

a = 1.18 m/s^2

Now for second condition

u = 70*5/18 = 19.44 m/s^2

Using formula

0 = 19.44^2 - 2*1.18*d

d = 160.13 m ...... Minimum distance required

Answer 2

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