Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) A ball is dropped from a height. If it takes 1 sec to cross the last 55m before hitting the ground find the height from which it was dropped - Sarthaks eConnect

A ball is dropped from a height. If it takes 1 sec to cross the last 55m before hitting the ground find the height from which it was dropped:

55 m

50 m

90 m

180 m