October 2018 1 7 Report

BARDZO PROSZĘ O POMOC.A pulley is used to move a lift between the ground floor and the top floor of a block of flats. The 2 floors are 40 meters apart and the radius of the pulley is 1 meter. a) Calculate the circumference of the pulley. b) Approximately how many revolutions will the pulley make in raising the lift from the ground floor to the top floor?


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