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This question has more than one answers correct.. pls help

This question has more than one answers correct.. pls help

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Grade:12

1 Answers

Arun
25750 Points
4 years ago
Both rotational motion and translational motion indicates that point O will slide towards left, thus kinetic friction will act towards right.
f 
k
​ 
 =μMg=.08×(50×10)=40N
As T=200N>f 
k
​ 
 , thus a will also be towards left.
Ma=T−f 
k
​ 
 
50a=200−40⟹a=3.2m/s 
2
 
Also, about C: TR 
1
​ 
 −f 
k
​ 
 R 
2
​ 
 =MK 
2
 α
200(0.3)−40(0.6)=50(0.3) 
2
 α
⟹α=8rad/s 
2

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