no
The only way that two vectors add up to zero is if they have equal magnitude and opposite direction. If the magnitudes are not equal then no, they cannot give a zero resultant.
A couple: 2 parallel forces equal in magnitude, but opposite in direction separated by a distance.
No.
Zero.
Three One is obviously out. Two is out because if two unequal forces n and p act on an object the resultant with the minimum force in magnitude is |n - p|, which will never be 0 if n =/= p. Three can be easily resolved with a quick example. Imagine an object with three concurrent forces acting on it. Two forces, n = 3 N and p = 4 N, create an angle with each other such that the resultant is 5 N. 180 degrees from the resultant, a force, r = 5 N, is acting on the object. Thus three unequal vectors on an object can result in 0.
no
The only way that two vectors add up to zero is if they have equal magnitude and opposite direction. If the magnitudes are not equal then no, they cannot give a zero resultant.
Three. Equal forces, two.
A couple: 2 parallel forces equal in magnitude, but opposite in direction separated by a distance.
"Balanced forces" means that the sum of all forces acting on an object - i.e., the resultant force - is equal to zero.
No.
Do you mean buoyancy? They are said to be balanced, because their net sum, or resultant, is zero.
Do you mean buoyancy? They are said to be balanced, because their net sum, or resultant, is zero.
Zero.
-- When forces of unequal magnitude are added, the magnitude of the sum can be anything between the difference and sum of the individual magnitudes, depending on the angle between them. -- When forces of equal magnitude are added, the magnitude of the sum can be anything between zero and double the individual magnitudes, depending on the angle between them.
Do you mean buoyancy? They are said to be balanced, because their net sum, or resultant, is zero.
Do you mean buoyancy? They are said to be balanced, because their net sum, or resultant, is zero.