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16-10-2018
Physics

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The speed of a car is decreasing uniformly from 35 m/s to 15 m/s in 4 s. What is the car's acceleration

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taibamah taibamah

16-10-2018

Acceleration = Δv /Δt As Δ v = v₂ -v₁

= 35ms⁻¹ - 15ms⁻¹ / 4s

= 20 ms⁻¹ / 4s

= 5 ms⁻²

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