Question

balanced/unbalanced forces practice problems
problem\tnet force equation (include direction of force & label)\tbalanced or unbalanced? (circle answer)
50 n right and 100 n left\t100 - 50 = 50n\tbalanced unbalanced
7 n\t10 n\t10 - 7 = 3n left\tbalanced unbalanced
7 n\t7 n\t7n - 7n = 0 n\tbalanced unbalanced
30 n\t45 n\t30 + 45 = 75n\tbalanced unbalanced
75 n up and 35 n down\t\tbalanced unbalanced
850 n left and 800 n right\t\tbalanced unbalanced
10 n\t14 n\t\tbalanced unbalanced

Explanation:

Step1: Calculate net - force for 5

Subtract downward force from upward force.
$75 - 35=40$ N (upward)
Since net - force is non - zero, forces are unbalanced.

Step2: Calculate net - force for 6

Subtract right - ward force from left - ward force.
$850 - 800 = 50$ N (leftward)
Since net - force is non - zero, forces are unbalanced.

Step3: Calculate net - force for 7

Subtract downward force from upward force.
$14 - 10=4$ N (upward)
Since net - force is non - zero, forces are unbalanced.

Answer:

1. Net Force Equation: $75 - 35 = 40$ N (upward), Balanced or Unbalanced: Unbalanced
2. Net Force Equation: $850 - 800 = 50$ N (leftward), Balanced or Unbalanced: Unbalanced
3. Net Force Equation: $14 - 10 = 4$ N (upward), Balanced or Unbalanced: Unbalanced