Force (N) = mass (kg) × acceleration (m/s²)
Hence, the horizontal velocity of the rover is 1.73 m/s
Answer:
More force
Explanation:
Pressure and force are related by the equation:

where
p is the pressure
F is the force
A is the area
We can re-arrange the equation as

In this problem, the pressure is kept the same (p' = p) while the area is increased. As we can see from the previous equation, the force applied is directly proportional to the area: therefore, a greater area means also a greater force.
Answer:
The two main reasons that your results might not match up each time are uncontrolled conditions and experimental error.