An automobile traveling on a straight, level road at 15 km/h speeds up to 90 km/h in 50 s. what was the magnitude of the auto's acceleration, in meters per second squared?

0.42 m/s²

Explanation:

Given:

v₀ = 15 km/h = 4.17 m/s

v = 90 km/h = 25 m/s

t = 50 s

Find: a

v = at + v₀

(25 m/s) = a (50 s) + (4.17 m/s)

a = 0.42 m/s²

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2

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joke:

h o h o hope you have a merry christmas!