What is the correct pounds-force equivalent of 40 kN for the G-rated rope?

What is the correct pounds-force equivalent of 40 kN for the G-rated rope?

• A. 2250 lb
• B. 9000 lb
• C. 4500 lb
• D. 6750 lb

Answer: (B)

Converting between metric newtons and US customary pounds-force is the key idea. Use the standard conversion 1 N ≈ 0.2248 lbf. 40 kN equals 40,000 N. Multiply by 0.2248 to get 40,000 × 0.2248 ≈ 8,992 lbf, which rounds to about 9,000 lbf. So the pounds-force equivalent is approximately 9,000 lb_f.

Converting between metric newtons and US customary pounds-force is the key idea. Use the standard conversion 1 N ≈ 0.2248 lbf.

40 kN equals 40,000 N. Multiply by 0.2248 to get 40,000 × 0.2248 ≈ 8,992 lbf, which rounds to about 9,000 lbf.

So the pounds-force equivalent is approximately 9,000 lb_f.