An astronaut, visiting a newly discovered planet, finds the acceleration due to gravity by dropping an obje
rom a height of 1.0 meter and measuring how long it takes the object to hit the ground. If it takes the obje
0.8 seconds to hit the ground, what is the acceleration due to gravity on this planet?
A. 3.1 m/s²
B. 2.5 m/s²
C. 1.6 m/s²
D. 0.78 m/s2