P3 Forces And Energy Flashcards
1
Q
Terminal velocity
A
As speed increases, resistance increases
Reduces the acceleration until drag is equal to weight and thrust
2
Q
Momentum
A
Mass x velocity
3
Q
Force and momentum equation
A
F= (mv - mu)/t
4
Q
Work done
A
Force x distance
5
Q
Power
A
Energy /time
6
Q
How are cars more safe
A
Crumple zones Air bags Seat belts Side impact bars Increase time
