A child does 350J of work while pulling a box from the ground up to his tree house with a rope. The tree house is 5.2 m above the ground. What is the mass of the box? A) 4.1 kg B) 6.9 kg C) 6.2 kg D) 5.

A child does 350J of work while pulling a box from the ground up to his tree house with a rope. The tree house is 5.2 m above the ground. What is the mass of the box? A) 4.1 kg B) 6.9 kg C) 6.2 kg D) 5.2 kg

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