Answer:
1. C
2. A
Step-by-step explanation:
I hope this helps!
Answer:
|F net| = 20.22 N
θ ≈ 19.8°
Step-by-step explanation:
F net = 15N i + 8cos(60°)N i + 8sin(60°)N j
= 15N i + 8×½N i + 8×√3/2N j
= 15N i + 4N i + 4√3N j
= 19N i + 4√3N j
|F net| = √(19²+(4√3)²) = √(361+48) = √409 ≈ 20.22N
tan(θ) = 4√3 ÷ 19 ≈ 0.36 → θ ≈ arctan(0.36) = 19.8°
X=12*（21/14）=18 // you can find the ratio of the according sides.
-》D
Remember, multiply..
Width x length x height
So..
5.7 x 8.9 x 13.7 = 695.001
You can correct me if I'm wrong..
But I hope this helps you!
The third one is correct.
