5 buah batu bata dipindahkan sekaligus sejauh 25 m memerlukan usaha sebesar 500 Joule.( g = 10m/s²) Tentukan massa 1 buah Batu bata!

<p>s = 25 m</p><p>W = 500 J</p><p>g = 10 m/s²</p><p>&nbsp;</p><p>W = F x s</p><p>F = W : s</p><p>&nbsp; &nbsp; = 500 : 25</p><p>&nbsp; &nbsp; = 20 N</p><p>&nbsp;</p><p>F = m x g</p><p>m = F : g</p><p>&nbsp; &nbsp; &nbsp;= 20 : 10</p><p>&nbsp; &nbsp; &nbsp;= 2 kg</p><p>&nbsp;</p><p><strong>Mencari massa 1 buah batu bata</strong></p><p>Massa 1 buah batu bata = m : 5</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 2 : 5</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 0,4 kg</p><p>Jadi massa 1 buah batui bata adalah 0,4 kg</p>