Rotational Equilibrium and Newton's First Law in Rotational Form

AP Physics 1· difficulty 3/5

For the same setup as above, the force on the <strong>left</strong> support is

  • A

    300 N300~\text{N}

  • B

    75 N75~\text{N}

  • C

    225 N225~\text{N}

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  • D

    150 N150~\text{N}

Explanation

FL+FR=300FL=30075=225 NF_L + F_R = 300 \Rightarrow F_L = 300 - 75 = 225~\text{N}.

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