Question

1. 10n←→30n what is the resultant force? a) 40 n b) 10 n c) 30 n d) 20 n 9. →60n →30n what is the resultant force? a) 0 n b) 90 n c) 30 n d) 60 n

Explanation:

Step1: Determine force directions

For question 8, forces are in opposite directions.

Step2: Calculate resultant force for question 8

Let the 30N force be positive and 10N be negative. Resultant force $F = 30 - 10=20$N.

Step3: Determine force directions for question 9

For question 9, forces are in the same direction.

Step4: Calculate resultant force for question 9

Resultant force $F = 60+30 = 90$N.

Answer:

1. d) 20 N
2. b) 90 N