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2 years ago

An action force is 50 N to the left. The reaction force must be:

Physics

2 answers:

igomit [66]2 years ago

7 0

<h2>According to Newton's Third Law:</h2><h3>"For every action,there exists an equal and opposite reaction"</h3>

<h3>So an action force of 50 N to the left, results in a 50 N reaction force to the right.</h3>

<h2>Option A</h2>

saveliy_v [14]2 years ago

7 0

Answer is B
50 N down

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marshall27 [118]

Answer with Explanation:

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$4.3=\frac{1.68\times 10^{-8}\times l}{\pi(0.25\times 10^{-3})^2}$

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Number of turns of wire= $\frac{50.26}{2\pi(1\times 10^{-2}}=800$

Hence, the number of turns of the solenoid,N=799

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$n=\frac{3.7\times 10^{-2}}{4\times 3.14\times 10^{-7}\times 4.6}$

$n=6404 turns/m$

$n=\frac{N}{L}$

$L=\frac{N}{n}$

$L=\frac{799}{6404}$

$L=0.125 m=0.125\times 100=12.5 cm$

Length of solenoid=12.5 cm

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