If I understand the question correctly, the answer is 5N
It wouldn't be moving at all
You can't, unless you know both of their directions. -- If they're in the same direction, then the net force is 10N in that same direction. -- If they're in opposite directions, then the net force is zero, and the direction doesn't matter because there's no net force. -- Depending on their directions, those two forces can combine to produce a net force of anything between zero and 10 N, in any direction. So you need to know their directions in order to figure out what the net force is.
m = 1kgF1 = 20NF2 = -12NFnet = 20N + (-12N) = 8NFnet = m•aa = Fnet/m = 8N/1kg = 8m/s2
In fact, there is an infinite number of answers because force is a vector, meaning that it has a magnitude and an orientation. For example, if someone pushes horizontaly onto the book (10N) and the friction is 8N in the opposite direction, the resultant force is 2N. But if the book is pushed at an angle, the resultant force changes.
No. Its value varies with the value of n.
3n+5n=8n
3n2-8n+4 = (3n-2)(n-2) when factored
The question is somewhat vague. I'm supposing it should be: 3n - 16 <= 8n + 29 Subtract 8n from both sides: -5n - 16 <= 29 Add 16 to both sides: -5n <= 45 Multiply by -1, this reverses to inequality: 5n >= -45 Divide by 5: n >= -9
-((3n - 1)(n + 3))
A - B = -3n + 2 - (5n - 7) = -3n + 2 - 5n + 7 = 9 - 8n
It wouldn't be moving at all
15n + 5 or 5(3n + 1)
n = -6
3n - 9 + 4n = 8nCombine like terms:7n - 9 = 8nSubtract 7n from both sides:-9 = n
(3n-2)/8 = (n+4)/55(3n - 2) = (n+4)815n - 10 = 8n + 327n = 42n = 6
You calculate the vector sum of all the forces acting on the object. For example, if one force is in the positive direction, say 8N, and another force is in the opposite direction, say -7N, the net force would be 8N + (-7N) = 1N.
8n - 15 = 57 (add 15 to both sides)8n - 15 + 15 = 57 + 158n = 72 (divide both sides by 8)8n/8 = 72/8n = 9