(a) You wish to move a square box (0.3m by 0.3m) by 1m across a pavement. Given that thebox has of a mass of 80kg, by which way, rolling or sliding, will you need more energy? Why?The coefficient of friction between the pavement and the box is 0.6 (Hint: consider the energyused to roll equals to the work done to raise the centre of mass). Gravitational acceleration g9.81m/s² (?=(b) Based on the above, what would be the value of the coefficient of friction to yield the sameenergy by sliding and rolling when moving the box by the same length? (?1mDirection☐ SlidingRolling

a) When moving the box across the pavement, rolling requires more energy than sliding. This is…

Answered: (a) You wish to move a square box (0.3m…

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