- #1
tyty123
- 7
- 0
I've read that the surface area of an object in contact with the ground doesn't not affect the frictional force acting on it as it is pushed forward.
I kinda understand what is explained but I find it difficult to reconcile with what happens in real life...
Don't wheels reduce the surface area in contact and hence reduce friction acting on the object, allowing it to move forward more easily? Or like a larger parachute results in more surface area in contact with air, slowing the fall even more.
I kinda understand what is explained but I find it difficult to reconcile with what happens in real life...
Don't wheels reduce the surface area in contact and hence reduce friction acting on the object, allowing it to move forward more easily? Or like a larger parachute results in more surface area in contact with air, slowing the fall even more.