tolongin yaa pake cara plis banget hehe makasihhh

C
Wb - Ft = m x a
60 - Ft = 6a

Ft - Wa = m x a
Ft - 40 = 4a

60 - Ft = 6a (x 2)
Ft - 40 = 4a (x 3)

120 - 2Ft = 12a
3Ft - 120 = 12a
-------------------- -
240 - 5Ft = 0
Ft = 48