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- Homework Statement
- A tree has two devices attached to its trunk which are triggered when objects pass in front of them. The devices are vertically aligned and are placed 1.50 m apart, with the bottom one being 0.65 m above the ground. You climb the tree and decide to experiment to find out how high h0 above the ground you are. You release your wallet from your level so that it will pass in front of the motion detection devices. Once you've climbed down, you read that the lower device was triggered 0.194 s after the first one. Neglecting air friction and assuming that the wallet did not hit any branches on its way down, how high h0 had you climbed the tree?

- Relevant Equations
- h=1/2gt^2

I'm stuck on this problem, I've tried to follow techniques for similar questions, namely I seem to be struggling with these questions where I have to use an equation inside an equation. I've attached photos of my process so far, but obviously, I'm not getting the right answer because what I'm trying to solve for is being canceled out of the equation unless I messed up somewhere in rearranging the equations.

Help is much appreciated.

Help is much appreciated.