Asked by Mota

A student finds that a stretched rubber band stores 3.5 J of energy. She uses it to propel an object of mass 0.025 kg vertically upwards. What will be the initial speed of the object? How high can it travel before coming momentarily to rest?
Answered by drwls
Use the principles and equations I have shown you in my other answers. We will be glad to critique your work.
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