Q89 / 125 · BITSAT 2013 · Physics

A body is projected, making an acute angle with the horizontal. If angle between velocity $\vec{v}$ and acceleration $\overrightarrow{\mathrm{g}}$ is $\theta,$ then

  • A
    $\theta=90^{\circ}$
  • B
    $\quad \theta=0^{\circ}$
  • C
    $90^{\circ}<\theta<0^{\circ}$
  • Correct answer
    D
    $0^{\circ}<\theta<180^{\circ}$

Solution

Here velocity is acting upwards when projectile is going upwards and acceleration is downwards. The angle $\theta$ between $\overrightarrow{\mathrm{v}}$ and $\overrightarrow{\text { a }}$ is more than $0^{\circ}$ and less than $180^{\circ}$

Hence, the correct answer is option: 'D'.

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