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10 June, 20:24

A bus starts to move from rest. if it's velocity becomes 90 km per hour after 8 seconds, calculate it's acceleration (numerical problem)

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  1. 10 June, 22:32
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    Assuming the bus undergoes constant acceleration, it is given by:

    a = (Vf-Vi) / Δt

    a is the acceleration, Vf is the final velocity, Vi is the initial velocity, and Δt is the elapsed time.

    Given values:

    Vf = 90km/hr = 25m/s (the conversion rate from km/hr to m/s is 1/3.6)

    Vi = 0m/s (starts from rest)

    Δt = 8.0s

    Plug in the values and solve for a:

    a = (25-0) / 8

    a = 3.125m/s²

    Round to 2 significant figures.

    a = 3.1m/s²
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