how high was a brick dropped from if if falls in 2.5 seconds?

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14-03-2018
Physics

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how high was a brick dropped from if if falls in 2.5 seconds?

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citroen citroen · Answer 1 · 2018-03-14T02:08:57+01:00

citroen citroen

14-03-2018

using the kinematic equation d = V_0 * t + 1/2 * a * t^2, where d is height you can rewrite this to be d = 1/2*g*t^2 or 4.9t^2
g = a because this is a free fall
d = 1/2 * 9.81m/s^2 * 2.5^2
d = 30.65625m
d = 30.7m

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