The equation of work, a type of energy transfer is given by #W=Fs# in which;
#W#=Work done, in Joule #(J)#
#F# = Force exerted or applied, in Newton #(N)# or # kg m s^(-2)#
#s# = Displacement/Distance, in metre or #m#
But then we only have information of mass, #m=2kg# and distance, #s=1m#. To find force, #F#, we use the equation of #F=ma# which is also equal to #F=mg# in which;
#m# = Mass of object, in kilogram or #kg#
#g# = Gravitational acceleration, in #m s^(-2)#
Thus;
#W=Fs#
#W=(mg)s#
#W=(2kg xx 9.81m s^(-2)) xx 1m#
#W=19.62kg m^2 s^(-2)# or #19.62N m# or #19.62J#