Physics question! I need help, PLEASE!
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Physics question! I need help, PLEASE!

[From: ] [author: ] [Date: 12-06-06] [Hit: ]
end velocity = 78 * 5/ 18 = 21.a = deltaV / delta t ,a = 21.667 - 0 / 5.99 -0 = 3.= 3.......
A police car takes off from rest reaching a speed of 78km/hr at 5.99 seconds. What is the average acceleration in (m/s)^2 of the car?

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initial time = 0 , end time = 5.99 seconds

initial velocity = 0 , end velocity = 78 * 5/ 18 = 21.667 (m/s)

a = deltaV / delta t , a = Vend - V0 / Tend - T0

acceleration = change in velocity / change in time

a = 21.667 - 0 / 5.99 -0 = 3.617 m/s^2

= 3.167 m/s^2

hope this helps
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