Vector A and B have equal magnitude of 5. their sum equal 6j . determine the angle between them.

ice to water 1 water to vapour 2 latent heat

d) physical means can be used to separate the components of air.

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.