Question

When interplanetary space travel becomes viable, doctors may suggest to people with arthritis that they vacation on a planet with lower gravitational attraction and do more walking.

The gravitational acceleration on Earth is 9.8 m/s ^2
, while the gravitational acceleration on Mars is 3.7 m/s ^2
. How much less force would the vacationer be applying to their joints when walking on Mars?

(1 point)
Responses

36.26 times less force
36.26 times less force

6.1 times less force
6.1 times less force

2.6 times less force
2.6 times less force

13.5 times less force
13.5 times less force

Answer 1

2.6 times less force.

Reason: weight ∝ g, so ratio = 9.8 / 3.7 ≈ 2.65 (≈2.6). Thus you'd feel about 1/2.65 ≈ 0.377 of your Earth weight (≈62.3% less).