Explanation Content
Pulley Model | NCERT Class 9
Science · Class 9
Make a pulley by fixing two card sheets around a bottle cap. Fix the pulley in a pencil by making a hole in the centre of the bottle cap. Now take a 2 litre bottle and fix the pencil inside the bottle by making two diametrically opposite holes on the bottle's wall. Wind a thread around the pulley and fix given plastic can on one end of the thread. Fill the bottle with water and experience the model of pulling water out of well using a pulley.