GRE Physics GR 1777, Problem 001 Solution

You should know

$$ F = ma $$

Solution

The force $F_A$ is

$$F_A = m_A \ a_A.$$

Since $m_B = 2m_A$ and $a_B = 2a_A$, thus

$$ F_B = m_B \ a_B = (2m_A)(2a_A) = 4F_A. $$

Answer

(E) $F_B = 4F_A$

 

 

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