An object, initially at rest, moves 475 m in 19 s. What is its acceleration? *

Aace asked Jul 11, 2022

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Aace asked Jul 11, 2022

by Aace

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25 votes

$\\ \sf\Rrightarrow s=ut+(1)/(2)at^2$

$\\ \sf\Rrightarrow s=0(19)+(1)/(2)a(19)^2$

$\\ \sf\Rrightarrow 475=(361a)/(2)$

$\\ \sf\Rrightarrow 950=361a$

$\\ \sf\Rrightarrow a\approx 2.3m/s^2$

Filifunk answered Jul 18, 2022

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