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Vector sum/ Resulatant
single vector which would have the same net effect as all the individual vectors acting together
using Pythagoras, R = v (a2 + b2)
Finding the resultant of two perpendicular vectors by vector addition
The forces acting on an object in equilibrium will form a...
Resolving a vector into two perpendicular components
force opposite to angle equals Rsin?, force adjacent to angle equals Rcos?
component of weight parallel to plane/ frictional force equals Wsin?,
Forces acting on an object in equilibrium on an inclined plane
CONCAVE LENSES ARE THINNER IN THE MIDDLE
have only a magnitude e.g. speed, distance
have a magnitude and a direction e.g. velocity, displacement