Answer:
Question 1: Â
To find the vertical component in this scenario, you would use sine.
I would suggest using it on a calculator as it can become very time consuming on paper. Â Sine (angle) times force. Â Sin(30) times 19. I believe the answer is 9.5.
Question 2: Â
You would use Sine for vertical directions. Â I suggest doing it by calculator.
Sin(30) times 23 which would give you 11.5. Â sin(30) x 23. Then, you would subtract the weight of the box from it. so, 11.5 - 24. The net force is -12.5.
Question 3:
Use pythagoreans theorem   √ x²+y² = ||V||  or a²+b² = c²
√68²+24² =  √c²
Step-by-step explanation: