Linear Motion: Vector Quantities

Question	Answer
Vector Quantity	A quantity with both magnitude and direction
Examples of Vector Quantities	Displacement, velocity, force, acceleration, magnetic flux density, momentum, electric field strength
Displacement	Distance in a given direction Measured in metres
Velocity	The rate of change of displacement with respect to time Measured in metres per second
Formula for Average Velocity	(u + v)/2
Acceleration	Rate of change of velocity with respect to time Measured in metres per second squared
Formula for Acceleration	(Change in velocity) / (time taken) a = (v - u)/t
Adding Co-linear Vectors	Same direction - add magnitudes, use same direction Opposite direction - subtract magnitudes, use direction of larger vector
Triangle Law	The resultant of two perpendicular vectors is equal to the hypotenuse of the right-angled triangle formed by the two vectors placed "tip to tail"
Resolving vectors	A vector can be resolved into two perpendicular component vectors

Resource summary

	Created by alex.examtime9373 almost 11 years ago