Topic 2 Flashcards
Terminal Velocity
Objects falling through fluid reach terminal velocity = resultant force acting on it is 0 and moving at constant pace
Define Proportional
Directly linked
Inversely Propportional
Opposite = negative gradient
Force=
Mass x Acceleration
Define Inertia
Remaining unchanged
Define Inertial Mass
A measure of how difficult it is to change the velocity of an object
For every action there is an…
Equal and opposite reaction
Momentum
Measure of how much motion an object has
All moving objects have momentum
Momentum (p)=
Mass x Velocity
P=MxV
Conservation of Momentum
In a collision or explosion, momentum is conserved.
Momentum before =
Momentum after
Total Stopping distance=
Thinking distance + braking distance
Braking distance =
Stopping distance - thinking distance
Faster speed =
bigger stopping distance
Define Force
Rate of change on momentum
Force (f) =
MxV - MxU
—————
t