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A small mass is suspended by a string fr...

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

A

` mg cos theta`

B

` masintheta`

C

` msqrt(a^2+g^2)`

D

`ma sqrt(a^2+g^2)`

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • A small mass is suspended by a string from the ceiling of a car. As the car accelerates with an acceleration a horizontal road, the angle made by the string with the vertical is

    A
    `tan^(-1)g//a`
    B
    `tan^(-1)a//g`
    C
    `sin^(-1)g//a`
    D
    `sin^(-1)a//g`

  • A small mass is suspended by a string from the ceiling of a car. As the car accelerates with an acceleration a horizontal road, the angle made by the string with the vertical is

    A
    `tan^(-1) g//a`
    B
    `tan^(-1) a//g`
    C
    `sin^(-1)` g/a
    D
    `sin^(-1)` a/g

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    A
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