A) 20N
B) 15N
C) 35N
D) 40N
Correct Answer: D
Solution :
[d] Acceleration of the system \[a=\frac{F-4g-2g}{4+2}=\frac{120-40-20}{6}\] \[=10\text{ }m{{s}^{-2}}\] From figure \[T-2g=2a\] \[T=2\left( a+g \right)=2\left( 10+10 \right)\] \[=40\text{ N}\]You need to login to perform this action.
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