Question

opposite directions

1. what is the net force on the car?

a. net force =
b. is this force balanced or unbalanced?

1. a boy takes his dog for a walk. the dog is pulling with a force of 30n to the right and the boy is pulling backwards with a force of 18n. what is the net force on them?

a. net force =
b. is this force balanced of unbalanced?

1. both of the people on the left are pulling with a force of 55n to the left. on the right side of the rope, one person is pulling with 35n to the right, and the other person is pulling 20n to the right. what is the net force on the rope?

a. net force=
b. is this balanced of unbalanced?

1. what is the net force of the figure below?

5n→ ←10n
2n→
a. net force =
b. is this balanced or unbalance?
same direction

1. look at the picture to the right. both men are pushing on the refrigerator with a force of 100n. what is the net force of the refrigerator?

a. net force=
b. is this force balanced or unbalanced?

1. frankie and caitlin are trying to move on a small four - wheeler out of their garage. frankie pushes with a force of 40n. caitlin pushes with a force of 20n. what is the net force on the four - wheeler?

a. net force=
b. is this balanced or unbalanced?

Explanation:

Step1: Define net - force formula for opposite directions

Net force when forces act in opposite directions is $F_{net}=|F_1 - F_2|$. When forces act in the same direction, $F_{net}=F_1 + F_2$. A balanced force has a net - force of 0, and an unbalanced force has a non - zero net force.

Step2: Solve problem 11

a. The forces on the car are 7N and 10N in opposite directions. So, $F_{net}=|10 - 7|=3N$.
b. Since $F_{net}=3N
eq0$, the force is unbalanced.

Step3: Solve problem 12

a. The dog pulls with 30N to the right and the boy pulls with 18N to the left. So, $F_{net}=|30 - 18| = 12N$.
b. Since $F_{net}=12N
eq0$, the force is unbalanced.

Step4: Solve problem 13

a. The total force to the left is $F_{left}=55 + 55=110N$, and the total force to the right is $F_{right}=35 + 20 = 55N$. Then $F_{net}=|110 - 55|=55N$.
b. Since $F_{net}=55N
eq0$, the force is unbalanced.

Step5: Solve problem 14

a. The total force to the right is $F_{right}=5 + 2=7N$, and the force to the left is 10N. So, $F_{net}=|10 - 7| = 3N$.
b. Since $F_{net}=3N
eq0$, the force is unbalanced.

Step6: Solve problem 15

a. The two men push with 100N each in the same direction. So, $F_{net}=100+100 = 200N$.
b. Since $F_{net}=200N
eq0$, the force is unbalanced.

Step7: Solve problem 16

a. Frankie pushes with 40N and Caitlin pushes with 20N in the same direction. So, $F_{net}=40 + 20=60N$.
b. Since $F_{net}=60N
eq0$, the force is unbalanced.

Answer:

11.
a. 3N
b. Unbalanced
12.
a. 12N
b. Unbalanced
13.
a. 55N
b. Unbalanced
14.
a. 3N
b. Unbalanced
15.
a. 200N
b. Unbalanced
16.
a. 60N
b. Unbalanced