Rolling friction

In this task you need to design a prac which will enable you to measure the rolling friction of a dynamic trolley using the tracker software.

You may like to consider the work done in slowing the trolley down as it travels over a surface. Remember Work = force x distance,You can assume the kinetic energy at the start will be transferred to heat through the friction, eventually stopping the cart.

Hints: don't start too fast, choose a rough surface, make sure you have a ruler in the shot!

What happens if you increase the mass. Try using the masses or a brick (cupboards under the equipment at front?

Good luck