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Physics, 06.04.2021 07:30 zaylencollins55
In the plot below, determine the acceleration. How long will it take to reach a speed at 70 m/s. Photo below.
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Physics, 22.06.2019 18:00
By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?
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Physics, 22.06.2019 22:30
The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.
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In the plot below, determine the acceleration. How long will it take to reach a speed at 70 m/s.
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