Figure 62 Force Diagram with Masses at Each End of of a Pivoted

question 1

Multiple Choice

Figure 6.2 Force diagram with masses at each end of a pivoted bar of length (L+1) m.
-In Fig. 6.2, the normal force N is 20 N and masses m_A and m_B, where m_B = 2m_A, hang in equilibrium at the ends of a uniform bar of mass m_bar = m_A/2 and length (L+1) m, exerting loads w_A and w_B, respectively. What are the values of m_bar and L that give equilibrium?

• A)0.29 kg, 2/7 m
• B)0.29 kg, 5/7 m
• C)2.86 kg, 2/7 m
• D)2.86 kg, 5/7 m

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Definitions:

Introns

Non-coding sequences of DNA within a gene that are removed during RNA processing before translation.

Codon

A codon is a sequence of three nucleotides in mRNA that specifies a particular amino acid or start/stop signal for protein synthesis.

Ribosomal RNA

A molecular component of ribosomes, essential for protein synthesis in all living organisms, playing a catalytic and structural role in ribosomes.

Structural RNA

RNA molecules that are not translated into protein but form an integral part of cellular structures like ribosomes.