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During a step areobics class Jane stepped up onto a platform 35 cm above the floor 625 times janes mass is 52 kg what is the total amount of energy used stepping up onto the platform?
Wiki User
∙ 14y ago
Jane's weight is (mass) times (acceleration of gravity) = (52 x 9.8) = 509.6 newtons.
The energy (work) to raise her mass to the platform is (force) x (height) = (509.6 x 0.35) = 178.36 joules.
To do this 625 times requires (625 x 178.36) = 111,475 total joules.
Wiki User
∙ 14y ago
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