Acceleration of B .

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4-1.Newton's Laws of Motion

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Find the acceleration of $B$.

A

$\frac{a \sin \alpha_1}{\cos \alpha_2}$

B

$\frac{\operatorname{acos} \alpha_1}{\cos \alpha_2}$

C

$\frac{ a \cos \alpha_2}{\cos \alpha_1}$

D

$\frac{\cos \alpha_1}{\cos \alpha_2}$

Solution

$b \cos \alpha_2= a \cos \alpha_1$

$b =\frac{ a \cos \alpha_1}{\cos \alpha_2}$

Standard 11

Physics

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