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When two vectors with different magnitudes and opposite directions are added :
-- The magnitude of the sum is the difference in the magnitudes of the two vectors.
-- The direction of the sum is the direction of the larger of the two vectors.
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∙ 14y ago
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Can scalar and vector quantities added by the same method?
Scalar quantities are added algebraically. But vector quantities are added using vector addition. If 3 and 4 are added only 7 is the result. If two vectors with magnitude 3 and 4 are added there will be different results such as 7, 1, 5, etc etc. 7 will be the answer if both the vectors are in the same direction. 1 will be the answer if both are in opposite direction 5 will be the answer if both act perpendicular to each other. Other innumerable answers are possible as both vectors act with different angles of inclination.
In what way does friction always act?
And it not only DOES; it works in no other way. Friction is a sneaky thing. You know how a thermos "knows" to keep the hot stuff hot and the cold stuff cold? Well, friction always knows in which direction you're trying to go and pushes against you!
What happens when a net unbalanced force act on an object?
Moves it the opposite direction.
Why does friction act in the direction of your motion when you are walking?
Because your feet are pushing backwards and therefore the friction opposes in the opposite direction which happens to be the direction in which you are walking.
How do you identify the direction of a force?
A force can be expressed as a vector (a magnitude with a direction). Using trigonometry the resultant force can be calculated using the original forces (either in component form simply as vectors themselves)
Can the resultant of two vectors be 0 how is it possible for two vectors always?
If they are equal in magnitude but act in opposite directions.
What is the maximum resultant possible when adding a 13-unit vector to an 18-unit vector?
31
What direction does the force of friction act when a body slides?
In the direction opposite to that of the sliding body.
Friction ask in the opposite direction of?
Frictional force must always act in opposite directions
Can scalar and vector quantities added by the same method?
Scalar quantities are added algebraically. But vector quantities are added using vector addition. If 3 and 4 are added only 7 is the result. If two vectors with magnitude 3 and 4 are added there will be different results such as 7, 1, 5, etc etc. 7 will be the answer if both the vectors are in the same direction. 1 will be the answer if both are in opposite direction 5 will be the answer if both act perpendicular to each other. Other innumerable answers are possible as both vectors act with different angles of inclination.
When is the vector sum of two vectors not equal in magnitude to their algebraic sum?
In all cases except when they act in the same direction.
If 2 force act on the object in the same or opposite directions what willbe the net force of the object in 2 cases?
There is no net force OF the object. If the forces act in the same direction, the net force is magnitude of the net force is the sum of the forces and acts in the same direction. If the forces act in opposite directions, the magnitude of the net force will be the difference between their magnitudes and it will act in the direction of the larger of the two forces.
When are force said to be added and when are they subtracted?
if two forces act in same direction they r added and if they act in opposite direction they r subtracted
When two equal forces act in opposite direction they balance?
Cancel
In what way does friction always act?
And it not only DOES; it works in no other way. Friction is a sneaky thing. You know how a thermos "knows" to keep the hot stuff hot and the cold stuff cold? Well, friction always knows in which direction you're trying to go and pushes against you!
What does the dierection of friction always act?
it acts in the opposite direction of motion or force
What happens when a net unbalanced force act on an object?
Moves it the opposite direction.
