Wheelbarrows

This task is about forces.
man-wheelbarrow-force-300.png
A workman is carrying sand in a wheel barrow.

Question

a)  Which arrow shows the force of gravity on the sand?

    • 1

    • 2

    • 3

    • 4

    • 5

Question

b)  The wheelbarrow makes the job easier because it acts as

    • a lever

    • an inclined plane

    • a pulley

    • a gear