Linear Kinetics 2 Flashcards
1
Q
What is an impulse
A
Change in momentum
(Trapezium rule)
Force x time
2
Q
What is a zero impulse/positive impulse
A
Zero - if + impulse = - impulse, change in velocity and momentum = 0
Positive: if +>- impulse, change in momentum and velocity >0
3
Q
What is a joule
A
1 j is the amount of energy required to accelerate 1kg mass at 1m/s2 through a distance of 1m
4
Q
What is potential energy
A
The energy that a body possesses due to its position relative to the earths surface
PE
Weight x distance from earths senses
5
Q
What is kinetic energy
A
The energy that a body possesses for to movement
