A child lifting a school bag, Muscular force, A fan rotating, Mechanical force, An apple falling from a tree, Gravitational force, A stretched rubber band returning to its shape, Elastic force, A bicycle stopping when brakes are applied, Frictional force

Leaderboard

Estilo ng visual

Mga pagpipilian

Magpalit ng template

Ibalik ng awtomatikong pag-save: ?