physics

1. A football player initially at rest accelerates uniformly as she runs down the field, travelling 17 m [E] in 3.8 s. What is her final velocity?

2. A child on a toboggan sits at rest on the top of a tobogganing hill. If the child travels 70.0 m [downhill] in 5.3 s while accelerating uniformly, what acceleration does the child experience

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  1. Recall that starting from rest, s = 1/2 at^2
    so,
    a = 2s/t^2
    v = at = 2s/t

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