A plumb bob is hanging from the ceiling of a car. If the car moves with an acceleration a, the angle made by the string with the vertical is ________.

\({\tan ^{ - 1}}\left( {\frac{g}{a}} \right)\)

\({\sin ^{ - 1}}\left( {\frac{a}{g}} \right)\)

\({\sin ^{ - 1}}\left( {\frac{g}{a}} \right)\)

\({\tan ^{ - 1}}\left( {\frac{a}{g}} \right)\)

A plumb bob is hanging from the ceiling of a car. If the car moves wit

1.	A plumb bob is hanging from the ceiling of a car. If the car moves with an acceleration a, the angle made by the string with the vertical is ________.
A.	\({\sin ^{ - 1}}\left( {\frac{a}{g}} \right)\)
B.	\({\sin ^{ - 1}}\left( {\frac{g}{a}} \right)\)
C.	\({\tan ^{ - 1}}\left( {\frac{a}{g}} \right)\)
D.	\({\tan ^{ - 1}}\left( {\frac{g}{a}} \right)\)
Answer» D. \({\tan ^{ - 1}}\left( {\frac{g}{a}} \right)\)