resultant forces Flashcards
What can force affect?
The shape of an object, its state of rest or its motion.
Newton
(N) the unit of force. (10N-1kg)
Is momentum a scalar or a vector?
It has a size and a direction, so it is a vector
The Law of Conservation of Momentum
In a closed system, the total momentum before an event is equal to the total momentum after the event.
Stopping Distance =
Thinking Distance + Braking Distance
Thinking Distance
the distance for the driver to spot in incident
Braking Distance
how longs it takes to break
Weight
The force of gravity on an object (N)
Mass
The quantity of mass of an object (kg)
What is needed for work to be done?
Energy
Power
The rate at which energy is transferred per second.
(Watt
Elastic Potential Energy
The energy stored in an elastic object when work is done on it.
