Weightlessness can be classified into two types:-
- True weightlessness
- Apparent weightlessness
The state of body at which the weight of a body is zero due to absense of acceleration due to gravity.Outside gravitational field, mass(m) can never b zero but acceleration due to gravity(g) is zero.And we know weight(W)=mg,
Simply the weight of a body while its in freefall is called apparent weightlessness.This is due to lack of reactant force to the body.