The Force Needed to Accelerate "Opportunity" (Opportunity Is a Mars

Multiple Choice

The force needed to accelerate "Opportunity" (Opportunity is a Mars rover) on Mars at 1 m/s² in the horizontal direction is ____ the force needed to accelerate the rover while it was undergoing testing on Earth.

A) less than
B) equal to
C) greater than
D) unable to tell
E) depends on what g is on Mars