Question

In a lab, the mass of object A is 2.5 kg. Object weighs what?

Answer 1

F = 2.5 kg x g .........g=9.81 m/sec^2. 
. 
.F=24.5 N...................N=Newton. 

Answer 2

Weight of object = mass x acceleration due to gravity
                             =  2.5 x 9.8
                             =   24.5N