Being prejudiced usually means having preconceived beliefs about groups of people or cultural practices and prejudice includes all three components of an attitude (affective, behavioral and cognitive). Whereas discrimination is a behaviour
Prejudice has to do with the inflexible and irrational attitudes and opinions held by members of one group about another, while discrimination refers to behaviors directed against another group. Being prejudiced usually means having preconceived beliefs about groups of people or cultural practices.
Most likely it would dislodge the coconut on the way down due to gravity because on the way up the gravity would slow down the rock but on they down the gravity pulls the rock