Does it require more or less effort to push a loaded wheelbarrow over hard level ground than to turn around and pull it? What about when the ground is soft?
• There is little difference in effort in pushing or pulling over hard ground. Pushing is normally preferred as it is ergonomically favourable and the handles less likely to slip from your hands. The forces involved in moving a wheelbarrow over soft ground are more complex, involving a rotational force to lift the wheel over, or through, mud and gravel.
Consider a wheelbarrow pushed against a kerb. The force required to…
