Answer to Question #174702 in Physics for Jack

Question #174702

A uniform plank rests in at it's center.teo children p and q sit on the plank in the position shown

The mass of the child p is 50kg the plank is balanced what is the mass of child q shoe your working

A:20 kg

B:25kg

C:24kg

D:33kg

Expert's answer

"lm_pg=2lm_qg\\\\m_q=0.5(50)=25\\ kg"

Answer: B:25kg

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