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4.8 Calculate the total mechanical energy of the mummy and board at point A. (3) 4.9 State the principle of the conservation of mechanical energy.

4.8 Calculate the total mechanical energy of the mummy and board at point A. (3) 4.9 State the principle of the conservation of mechanical energy. (1) 4.10 At the time the mummy and board reach point C with a velocity of 1 m.s-1, 20% of the mechanical energy had been used to overcome friction. Calculate the height of point C. (5) 26 MARKS

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