16. 0/10 points | Previous Answers KatzPSEf1 2.P067 My Notes Ask Your Teacher Wh

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16. 0/10 points | Previous Answers KatzPSEf1 2.P067 My Notes Ask Your Teacher While strolling downtown on a Saturday afternoon, you stumble across an old car show. As you are walking along an alley toward a main street, you glimpse a particularly stylish Alpha Romeo pass by. Tall buildings on either side of the alley obscure your view, so you see the car only as it passes between the buildings. Thinking back to your physics class, you realize that you can calculate the car's acceleration. You estimate the width of the alleyway between the two buildings to be 6 m. The car was in view for 0.8 s. You also heard the engine rev when the car started from a red light, so you know the Alpha Romeo started from rest 6 s before you first saw it. Find the magnitude of its acceleration. 1.10 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. m/s2 Need Help?ReadIt Submit Answer Save Progress Practice Another Version

Explanation / Answer

Given that,

s = 6 m

From kinematic equation,

velocity of alpha romeo after 6 s,

v = u + at

where, u = 0

a = acceleration of car

v = 0 + 6*a

v = 6a

From second equation of motion,

Distance covered by car in 0.8 s,

s = ut + (1/2)at^2

s = 6a*0.8 + (1/2)*a*(0.8)^2

s = 5.12a

6 = 5.12*a

a = 1.17 m/s^2

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