Question

No 1&2 gmn cara menyelesaikannya?

Answer 1

Fx=30 cos 120+20 cos 0+12√3 cos 270
=-15+20+0
=5
fy=30 sin 120+20 sin 0+ 12√3 sin 270
=15√3+0-12√3
=3√3
f total =√(5)^2+(3√3)^2
=√52



vt^2=vo^2+2as
vt^2=36+1.2.16
vt^2=36+64
vt^2=100
vt=10 m/s