resultant forces Flashcards
what may a force cause a mass to do?
accelarate
what can the acceleration a force may cause be a change in?
speed, direction or both!
whats the resultant force?
the sum of all of the forces acting on an object.
whats the change in an objects motion caused by?
the resultant force.
what does it mean if the forces acting on an object are unbalanced (not equal)?
it means that a resultant force is acting on the object.
resultant force equation-
F=ma
OR
Resultant force (F) = mass (m) x acceleration (a).
whats the Newton’s 2nd Law?
Resultant force (F) = mass (m) x acceleration (a).
what does a resultant force cause?
an acceleration
how can an acceleration be calculated?
with this equation->
Resultant force (F) = mass (m) x acceleration (a).
If there is no resultant force acting on an object:
will the object at rest?..
go backwards
OR remain at rest
Remain at rest
true or false. If there is no resultant force acting on an object a moving object will continue in a straight line at constant speed?
TRUE
what does Newtons 1st Law say?
that the velocity of an object will only change if a resultant force is acting on the object
what does the newtons law apply to?
This applies to a stationary (still) or moving object.
will an object stay stationary if theres no reactant force acting on it?
yes
