Question

please solve this question

Answer 1

See the picture for the solution

Answer 2

let's solve your question number 7

20-2fr= 6×0.5
20-2fr= 3
2fr= 20-3
2fr= 17
fr= 17÷2
fr = 8.5
so ans = 8.5 N

T-Fr= 3×0.5
T= 1.5+8.5
T = 10N

thanks