In class we we’re working on a lab, We had to shoot a stationary toy truck with a dart pulled back and giving it’s energy through a spring. We are given the mass of the dart and the truck, and found the amount of time the truck travelled for and its distance. I’m unsure which equation to start with in order to find the darts initial velocity.

**ASKED IVIE**

Answer:

This is based on Law of conservation of energy

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