Tolong kasih tahu jawabannya no 1-3

1.)

m2=8kg

m1=2kg

g=10m/s²

^^percepatan^^

a=(m2-m1)g/m2+m1

=60/10

=6m/s²

^^tegangan tali^^

T-w1=m1×a

T=w1+m1×a

=m1×g+m1×a

=20+12

=32N

2.)

u=1/4=0,25

m1=2kg

m2=4kg

g=10m/s²

^^percepatan^^

a=(m2-m1)g-fg/m2+m1

=(4-2)10-u×m1×g/6

=20-0,25×2×10/6

=15/6

=2,5m/s²

^^tegangan tali^^

w2-T=m2×a

T=w2-m2×a

=m2×g-m2×a

=40-10

=30N

3.

m1=4kg

m2=6kg

g=10m/s²

sudut=53°

^^percepatan^^

a=(m2-m1sin53°)g/m2+m1

=(6-3,2)10/10

=28/20

=2,8m/s²

^^tegangan tali^^

T-w1=m1×a

T=w1+m1×a

=40+11,2

=51,2N