1.

A small mass is suspended by a string from the ceiling of a car. As the car accelerates at a rate 'a' the string makes an angle theta with the vertical. Then the tension in the string

Answer»

mg COS `theta`
ma SIN `theta`
`m sqrt(a^(2)+G^(2))`
`ma sqrt(a^(2)+g^(2))`

ANSWER :C


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