A mass of lkg attached to one end of a string is first lifted up with acceleration 4.9m//s^2 and then lowered with same acceleration. What is the ratio of tension in string in two cases

A mass of lkg attached to one end of a string is first lifted up with

1.	A mass of lkg attached to one end of a string is first lifted up with acceleration 4.9m//s^2 and then lowered with same acceleration. What is the ratio of tension in string in two cases
Answer» 1:3 3:1 1:2 2:1 Answer :B