My Physics teacher told us to use a = g x sinθ during a lab trying to find how close we could calculate gravity using an inclined plane, a moving cart and a motion sensor to measure acceleration. He also drew a diagram next to the formula. I just wanted to confirm that his diagram was wrong, or whether i was looking at it incorrectly.https://gyazo.com/81845ac6ad3da72caf84e5a8d0501c83 After looking at the diagram i noticed there was no possible way a = g x sinθ could happen from that diagram. Sin = Opposite / Hypotenuse, meaning it would be g = a x sinθ. I looked up what the correct formula was and a = g x sinθ appeared. This means his diagram must be wrong or there must be something here i couldn't see. Could some one send me a correct diagram or tell me why i am wrong?