How to read equations Fractions •1 •1 •3 2 3 4 • one half • one third • three quarters Powers • 𝑥2 • 𝑥3 • 𝑥8 • 𝑥5 𝑎 𝑥 • x squared • x cubed • x to the eighth • x to the fifth 𝑆𝑞𝑢𝑎𝑟𝑒 𝑅𝑜𝑜𝑡 • 𝑥 • 𝑙 𝑔 • 𝑚 𝑘 • square root of x • square root of ell over gee • square root of emm over kay Subscripts • 𝑥0 • 𝑣0 • 𝑣𝑥 • 𝑎𝑐 • X naught (initial) • v naught (initial) • Vee ex • Tell us this is centripetal acceleration Let’s try • v=at • v=𝑣0 +at • x=𝑥0 + 1 𝑣0 t+ 𝑎𝑡 2 2 • vee equals a tee • vee equals v naught plus a tee • x equals x naught, plus vee naught t, plus one-half a tee squared Things in parenthesis ( ) • 2 𝑎𝑥 (𝑥 − 𝑥0 ) • two a times the quantity x minus x naught Over •a= • 1 T= 𝑓 𝑣2 𝑟 • a equals vee squared over r • tee equals one over f Other symbols • •∆ •𝜃 • cos • sin • tan • 𝑥 • Sum means total • ”Delta” means change • “Theta” and stands for angle • cosine • sine • tangent • Absolute value