A bob is hanging over a pulley inside a car through a string. The second end of the string is in the hand of a person standing in the car. The car is moving with constant acceleration a directed horizontally as shown in figure. Other end of the string is pulled with constant acceleration a vertically. The tension in the string is equal to-
(a) m sqrt(g^2 + a^2)
(b) m sqrt(g^2 + a^2) -ma
(c) m sqrt(g^2 + a^2) + ma
(d) m (g + a)

Question

A bob is hanging over a pulley inside a car through a string. The second end of the string is in the hand of a person standing in the car. The car is moving with constant acceleration a directed horizontally as shown in figure. Other end of the string is pulled with constant acceleration a vertically. The tension in the string is equal to-
(a) m sqrt(g^2 + a^2) 
(b) m sqrt(g^2 + a^2) -ma
(c) m sqrt(g^2 + a^2) + ma 
(d) m (g + a)

anonymous · Answer

|dw:1333851707795:dw|