Yes providing that the line is wide enough and that the can is equally balanced.
A sphere and a cylinder can roll straight.
Yes. If it is not straight, then it is not a line.
A cone-shaped object will not roll in a straight line because the circumference of the cone changes from one end to the other. For example, if one end of the cone has a circumference of 10 inches, that end will travel 10 inches per revolution, but if the other end of the cone has a 2 inch circumference, it will only travel 2 inches per revolution.
it just a straight line
If it is not straight, then it is not a line.
No.
a cylinder
On a smooth level surface, and with no forces acting on it after the moment of release, it MUST.
A sphere and a cylinder can roll straight.
Yes. If it is not straight, then it is not a line.
You have to have 2 at are school
Displacement of a straight line is zero...
A straight line has no vertex.
it just a straight line
If it is not straight, then it is not a line.
There are 180 degrees on a straight line.
The word straight does have an antonym, which is crooked. So perhaps a crooked line is the opposite of a straight line.