A spanner of length 10 cm is used to unscrew a nut by applying a minimum force of 5.0 N. Calculate the moment of force required.

A wheel of diameter 2 m can be rotated about an axis passing through its centre by a moment of force equal to 2.0 N m. What minimum force must be applied on its rim?

Find the thrust required to exert a pressure of 50,000 Pa on an area of 0.05 m².

Find the area of a body which experiences a pressure of 50,000 Pa by a thrust of 100 N.