User:RyanMyles/sandbox

What is work?

Work is using a force to move an object a distance (when both the force and the motion of the object are in the same direction.) Work = force x distance

example: if an object is 2 newtons and it is lifted 1 meter, then the work done would be calculated: 2 newton multiplied by 1 meter 2n x 1m = 2NM (Newton Meter) or 2 Joule

A 10 kilogram bag on a wheelbarrow exerts a 200 Newton force downwards on the table. A person exerts a horizontal force of 100 Newton on the wheelbarrow and moves the wheelbarrow 8 meters.

a). What is the work done by the 100 Newton horizontal force? work = force x distance     = 100 newtons x 8 meters     = 800 Newton Meters (NM)

Note: Horizontal force of 100 Newton force was exerted moving the wheelbarrow 8 meters. Hence 100n x 8M = 800NM

b). What is the work done by the 200 Newton downward force? work = force x distance     = 200 x 0      = 0 for that wheelbarrow was not moved Note:  The bag exerts a 200 Newton force on the wheelbarrow, but there was no horizontal force to move the wheelbarrow, which means distance is 0. Hence no work was done.