Answer:
0.82 m/s²
How?
Though its gravity is weak compared to earth, Eris has the strongest gravity out of all the dwarf planets: 0.82 m/s².
How Is Eris Important?
Eris is the largest dwarf planet in the Solar System, and the ninth largest body orbiting our Sun. The discovery of Eris was so important because it was a celestial body larger than Pluto, which forced astronomers to consider, for the first time in history, what the definition of a planet truly is!
Hope this helps you!! :D