# Dimensions: Physics Question

Inquiring_Mike
I've been having trouble with these questions, I would greatly appreciate it if anyone could help to explain them to me.
Question:
Explain how many dimensions the following motion is taking place in.
- a motocross racer rides around a hilly track
- a curler shoots a rock down the ice, around a guard, and onto a button
- a hockey player passes the puck along the ice
- a golfer hits a slice into the woods
- a train travels along a straight section of a track

Homework Helper
Anything that occurs on a single straight line is
1 dimensional, anything that occurs in a plane, but not a single straight line is 2 dimensional, any thing that occurs in a volume (not a single plane) is 3 dimensional.

Does the motorcylist ride in a straight line? Does he stay in a plane (on a flat surface)? What dimension are we talking about then?

A curler does not shoot the stone in a straight line (the problem said it goes around a guard) but does stay on the ice. What dimension is that?

A hockey player passes the puck along the ice. That sounds like a single plane. Does the puck curve or change direction?

Do you know what a slice is? That should give you the answer.

A train moving along a STRAIGHT section of track. Well, that was a give-away!

Loren Booda
Don't forget the dimension of time (and brane dimensions as well!)

Staff Emeritus
Gold Member
Originally posted by Loren Booda
Don't forget the dimension of time (and brane dimensions as well!)

This is the "Grade K-12 Forum", professor!

FZ+
He could get extra credit...

(Or lose a mark because the teacher doesn't understand...)

Inquiring_Mike
Thanks everyone for the help!