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  4. A small metallic sphere of mass m is suspended from the ceiling of a car accelerating on a horizontal road with constant acceleration a. The tension in the string attached with metallic sphere is

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Q. A small metallic sphere of mass $m$ is suspended from the ceiling of a car accelerating on a horizontal road with constant acceleration $a$. The tension in the string attached with metallic sphere is

Laws of Motion

Solution:

$T \cos \theta=m g$ ...(i)
$T \sin \theta=m a$ ...(ii)
Square and add (i) and (ii)
$T=m \sqrt{a^{2}+g^{2}}$

Solution Image