A constant in a formula: g is number 03

The picture shows the distance growing faster and faster with time: at 10 seconds it reaches 643 metres. A stone is thrown down at 15.3 metres per second. How far does it fall in 10 seconds? The formula is $\displaystyle v_0 t + \frac{1}{2} g t^{2}$. Press , type 15.3, press , type 10, and press . For $\displaystyle \frac{1}{2}$, type 2, then and . Press , then and 4, , and type the number 03: the standard acceleration of gravity. The calculator writes its value, 9.80665, in the expression. Press , type 10, and press . Press : the answer first shows as a fraction. Press for the decimal: 643.3325 metres.