Weight scales with gravitational acceleration Steps:

• Determine mass from Earth's weight: m = 660 N / 9.8 m/s² ≈ 67.3 kg.
• Calculate Mars weight: W_Mars = m × 3.7 m/s² ≈ 67.3 × 3.7 = 249 N (rounds to 250 N). Why C is correct:
• Weight W = mg, so it is directly proportional to g; 250 N matches the ratio g_Mars/g_Earth ≈ 3.7/9.8 ≈ 0.38, and 660 N × 0.38 ≈ 250 N. Why the others are wrong:
• A: Equals mass in kg, confusing weight with mass.
• B: Incorrect ratio calculation, like 660 × (3.7/13.8).
• D: Assumes weight is constant, ignoring g difference.

Final answer: C