A trolley is accelerating down an incline of angle $\theta$ with acceleration $g \sin \theta$. Which of the following is correct. $(\alpha$ is the constant angle made by the string with vertical)

824-727

  • A

    $\alpha=0^0$

  • B

    $\alpha=\theta$

  • C

    Tension in the string, $T = mg$

  • D

    Tension in the string, $T=m g \sec \theta$

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