answer is marked plz solve and attach the photo
20 points
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Answer:
30N upwards because there is a 30degres friction
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Answer:
20N downwards
Explanation:
1) draw all forces acting on body.
2) find limiting friction. Your answer cannot exceed that. Use
f limiting =uN(N=fcos30)=21.65N
3)balance vertical forces
mg=Fsin30-f
=>f=Fsin30-mg
=50-30
=20N downwards
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