AAI 50th All India Inter-Institutional Table Tennis Championships 2023 was organised by ___.
Andhra Pradesh state table tennis association
Telangana state table tennis association
Madhya Pradesh state table tennis association
Gujarat state table tennis association
A body is dropped from a height of 20 metres with zero initial momentum; calculate its mass if it hits the ground with momentum 40 kg·m/s. (Assume the acceleration due to gravity g=10 m/s2 )