Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
1.75 + 4.5 sin(45) t - 1/2 * 9.81 t^2 = 0
1.75 + 4.5 sin(45) t - 1/2 * 9.81 t^2 = 0
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random