DEMONSTRATING MOMENT OF INERTIA
YOU WILL NEED; AGLASS TUMBLER, A CARD  BOARD TO COVERTHE MOUTH OF THE TUMBLER, A ONE RUPEE COIN.
COVER THE MOUTH OF THE TUMBLER  WITH THE CARD BOARD AND PLACE THE COIN AT THE CENTRE OF THE CARD BOARD. IF YOU STRIKE THE EDGE OF THE CARD BOARD WITH YOUR FINGER THE COIN  WILL DROP DOWN INSIDE THE TUMBLER AND THE CARD IS SEPARATED FROM IT. THIS PROVES THE MOMENT OF INERTIA.
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