tolong bantuin ya hehe..

ma =5kg
mb = 2kg
mk = 1kg
g = 10 m/s^2

a =( ma-mb).g / ( 1/2mk + ma + mb)
= (5-2).10/(1/2.1+5+2)
=30/7,5
=4

W-T1=ma.a
T1=W-ma.a
=50-5.7,5
=50-37,5
=12,5

T2-W=mb.a
T2=mb.a+ W
=2.7,5+20
=15+20
=35

ga Nemu jawabannya gan

CMIIW