I have a query
Some context-I am a high schooler right now so I don't have any idea about the question I'm asking about.....My query is - IF time is a 4 dimentional thing...how do we even find out what time is in a 2d or a 3d perspective (I threw a damn ball in a project motion at some speed at an angle of 69 degree...find out the time when the ball hits the ground....many more questions like this...HOW ?)