Answer:
The pressure exerted by the buggy on the surface of Mars is 1600 pascals.
Step-by-step explanation:
The pressure is determined by the definition of stress, which is the force exerted by the buggy on the martian surface divided by the contact area of the latter:

Where:
- Stress, measured in pascals.
- Force, measured in newtons.
- Area, measured in square meters.
The force is the weight of the buggy (40 N) and
, the stress is now calculated:


The pressure exerted by the buggy on the surface of Mars is 1600 pascals.