A $5\mathrm{.}0-kg$ object is suspended by a string from the ceiling of an elevator that is accelerating downward at a rate of $2\mathrm{.}6\frac{m}{s^2}.$ What is the tension in the string?

a$)36$ N

b$)49$ N

C$)52$ N

d$)62$ N

e$)13$ N