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 ho 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 ho had you climbed the tree