Acar travels in a straight line for 3.7 h at a constant speed of 71 km/h . what is its acceleration? answer in units of m/s 2 .

a=0 m/s2

Explanation:

t=3,7 h=13320 s

v=const=71 km/h=19,7222 m/s ( 71*1000 m/2600 s=19,7222222 m/s)

if the speed is constant

a=Δv/Δt

since Δv= 0m/s since the speed is constant...

if the speed would rise from 0 m/s to 19.72222m/s

then a=(19.7222 m/s)/13320 s

a=0.00148 m/s2

A car travels in a straight line for 3.7 h at a constant speed of 71 km/h . what is its acceleration? answer in units of m/s 2

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