Question

Determine a aceleração de um veículo que, partindo do repouso, atinge a velocidade de 108 km/h depois de percorrer 50 m.
Cálculo por favor ; )

Answer 1

$\large{\begin{array}{l}\sf 108\,km/h\rightarrow30\,m/s\\\\\sf v^2=v_0^2+2a\cdot\Delta S\\\\\sf 30^2=0+2a\cdot50\\\\\sf900=100a\\\\\sf100a=900\\\\\sf a=\dfrac{900}{100}\\\\\boxed{\boxed{\sf a=9\,m/s^2}}\end{array}}$