9: Equations Flashcards
1
Q
Power (Energy)
A
Power = Energy / time
2
Q
Power (Force)
A
Power = Force * Velocity
3
Q
4th equation for suvat not given
A
s = (u+v / 2) * t
4
Q
how to calculate speed if given time
A
speed = distance / time
5
Q
how to find force for rate of change of momentum
A
F = Δp / Δt
6
Q
how to calculate final kinetic energy
A
final kinetic energy = original kinetic energy + change in gravitational potential energy
7
Q
relationship between work done, force and distance acting in a line
A
work done = force * distance
8
Q
relationship between work done, force and distance acting at an angle
A
work done = force * distance * cos theta
F s cos(theta)
