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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
To find the total energy used, you need to calculate the work done in lifting Jane's body mass against gravity each time she steps up. The work done can be calculated using the formula: work = force × distance moved in the direction of the force. In this case, the force is Jane's weight (mass × acceleration due to gravity) and the distance is the height of the platform (35 cm converted to meters). Finally, multiply the work per step by the total number of steps (625) to find the total energy used.
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