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27-08-2019
Physics

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During a race a cyclist changes speed from 48 KPH (km/hr) to 27 KPH. If this was done in 15 seconds what was her acceleration in km/hr2?

Pick the correct answer from the ranges below.

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Chenk13 Chenk13

27-08-2019

Answer:

-5040 km/h²

Explanation:

Average acceleration a is given by:

a = Δv/Δt

a = (27km/h - 48km/h) * 60m/h * 60s/m / 15s

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