Question

net force worksheet
net force means...
balanced vs. unbalanced
directions: calculate the net force acting on the objects described below. circle the number of any problem that results in no motion.
1.

Explanation:

• Net Force: The net force is the vector sum of all the forces acting on an object.
• Forces in the same direction: When forces act in the same direction, we add their magnitudes. For example, if force \(F_1 = a\) N and \(F_2=b\) N act in the same direction, the net force \(F_{net}=a + b\) N.
• Forces in opposite directions: When forces act in opposite directions, we subtract their magnitudes. If \(F_1=a\) N and \(F_2 = b\) N (\(a>b\)) act in opposite directions, \(F_{net}=a - b\) N (in the direction of the larger force).
• Balanced vs Unbalanced:
• Balanced: When forces are balanced, the net force \(F_{net}=0\) N. An object with a balanced net force is either at rest or moving at a constant velocity (not accelerating).
• Unbalanced: When forces are unbalanced, \(F_{net}

eq0\) N. An object with an unbalanced net force is accelerating.

For the problem with \(F_1 = 5\) N (to the right) and \(F_2=5\) N (to the left):
Since the forces are in opposite directions, \(F_{net}=|F_1 - F_2|\). Substituting \(F_1 = 5\) N and \(F_2 = 5\) N, we get \(F_{net}=|5 - 5|=0\) N. This is a balanced force situation.

Answer:

• Net Force: The vector sum of all forces acting on an object.
• Forces Calculation:
• Same direction: Add the magnitudes of the forces.
• Opposite directions: Subtract the magnitudes of the forces (take the direction of the larger force).
• Balanced vs Unbalanced:
• Balanced: \(F_{net} = 0\) N, not accelerating.
• Unbalanced: \(F_{net}

eq0\) N, accelerating.

• For the \(5\) N - \(5\) N problem: The net force is \(0\) N (circle this problem as it results in no motion).