How high must a sack of sugar weighing 10 kg be lifted to have 58 J of potential energy? (Hint: Derive the formula of PE-mgh to get the formula for height. Divide both sides by the variable/s adjacent to height (h) to get h=PE/mg)
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If a bicycle with a velocity of 17.89 has kinetic energy of 5000 J. What is the mass of the bicycie? (Hint: Derive the formula of KE my to get the formula for mass. Divide both sides by the variable/s adjacent to the mass (h) to get m=KEEP/(0.5)(v²)



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