Question : A plumb line is suspended from a ceiling of a car moving with horizontal acceleration ofπ. What will be the angle of inclination with vertical?
(A) \tan ^{-1}\left( \dfrac{a}{g}\right)
(B) \tan ^{-1}\left( \dfrac{g}{a}\right)
(C) cas ^{-1}\left( \dfrac{a}{g}\right)
(D) cas ^{-1}\left( \dfrac{g}{a}\right)
Answer : option (A)
Solution :
