Pressure = Force / Area

Steps:

• Calculate total weight: 1600 kg × 10 N/kg = 16000 N.
• Force per tire: 16000 N ÷ 4 = 4000 N.
• Pressure per tire: 4000 N ÷ 100 cm² = 40 N/cm².

Why C is correct:

• Pressure is defined as force divided by area, yielding 40 N/cm² for each tire.

Why the others are wrong:

• A: Underestimates by dividing total mass by total area incorrectly (1600 ÷ 400 = 4).
• B: Errors in force calculation, like using mass directly (1600 ÷ 100 = 16).
• D: Overestimates by applying total weight to one tire's area (16000 ÷ 100 = 160).

Final answer: C