Resultant Forces Flashcards
Resultant force=..?
Can cause….
• if result force = 0 then…?
• result force isn’t 0 then…?
If 2 forces act on an object along same line the resultant force = the sum of the forces if same direction/ difference if in opposite directions!
Resultant force =a single force that has the same effect on the motion as all the original forces acting together
Can cause a change in an object’s state of rest or motion
0- then object stays at rest or at constant speed
Not 0- then velocity of object will change
What can forces do?
Unit of force = Newtons (N)
What happens when two objects interact?
Forces can change the shape of an object, change it’s motion, or it’s state of rest
• when they interact they always exert equal and opposite forces on each other!!!
Force diagrams
= ….⬅️
What is a parrellogram of forces?
Parrellogram of forces
↗️ ⭕️ ↘️. Calculate distance in the middle with ruler and scale!!!
Resultant force!!!
• Bigger it is the greater the acceleration of the object
•greater the mass of the object the smaller it’s acceleration for a given force!
• resultant force equation??
Resultant force (N) =mass(kg) x acc(m/s^2)
Velocity increases if ….?
Velocity decreases if…?
⬆if resultant force is in same direction as velocity
⬇️if resultant force is in opposite direction