What is the reading shown in spring balance

Explanation

`(i) ` Since equal mass on both sides reading on the balance will be zero
(ii) Give m= 2kg
w= mg
Weight acts .So spring balance reads
Along the Y- axis
`W= 2 xx 9.8xx sin 30^(@)`
`= 2 xx 9.8 xx (1)/(2)`
`W = 9.8 N`