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PERFORMANCE TASK Calculate the following problem. Show your solutions 10 -12. What is the mass of an object that creates 33,750J of energy by traveling at 30m/s? 13 – 14. A baby carriage is rolling down a hill at 18m/s. If the carriage has 90J of kinetic energy, what is the mass of the carriage? 15-16. A 10g mass is lifted to a height of 2m. What is its potential energy at this position? 17-18. The potential energy of an apple is 6.0 joules. The apple is 3m high. What is the mass of the apple? 19 – 20. Calculate the kinetic energy of a truck that has a mass of 2900g and is moving at 55m/s.