A bungee jumper has a mass of 74.3 kg and falls a distance of 113 m before the bungee catches and sends the jumper upwards. 1. Assuming the jumper starts from rest, find their total mechanical energy.
2. Assuming energy is conserved, find the speed of the jumper just before the bungee catches.
3. After the bungee catches, the jumper returns to a maximum height of 98.3 m. How efficient is the bungee in returning the stored energy to the jumper?

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energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods