Answer :

Final answer:

The weight of a 70 kg astronaut on Mars is calculated by multiplying the mass by the gravity on Mars (3.7 m/s²), resulting in 259 N, which is closest to answer choice A) 270 N when considering significant figures.

Explanation:

The weight of an astronaut on Mars can be calculated using the formula for weight, which is the product of mass and the acceleration due to gravity (g). The formula for weight (W) is W = m × g, where m represents the mass of the astronaut and g is the acceleration due to gravity on Mars.

Given:

  • The mass (m) of the astronaut = 70 kg
  • Acceleration due to gravity on Mars (g) = 3.7 m/s²

Thus, the weight (W) of the astronaut on Mars is:
W = m × g
W = 70 kg × 3.7 m/s²
W = 259 N

Therefore, the closest answer to the given choices would be A) 270 N, taking into account significant figures and rounding.

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