Seorang anak mendorong meja, tetapi meja tersebut tidak bergeser. Pernyataan berikut yang benar adalah... Energinya sama dengan nol Anak tersebut tidak melakukan usaha Usahanya ada tapi kecil Usahanya ada tapi kurang besar

Anak tersebut tidak melakukan usaha

In physics, work is noted as the dot product of force and displacement. If the displacement of the object doesn't occur when a specific force is applied, hence, it means no work is done. The force applied by the kid on the table does not render work done because the table doesn't shift therefore the displacement is compromised as in it is equal to zero. According to the concept, work done = force × displacement × cos(θ), if displacement is 0, the work done is 0 irrespective of the value of the force applied.