Duration: 6:56

9 views

0

When a man moves down the inclined plane with a constant speed \( 5 \mathrm{~m} / \mathrm{s} \) which makes an angle of \( 37^{\circ} \)
\( \mathrm{P} \) with the horizontal, he finds that the rain is falling vertically downward. When he moves up the same W inclined plane with the same speed, he finds that the rain makes an angle \( \theta=\tan ^{-1}\left(\frac{7}{8}\right) \) with the horizontal. The speed of the rain is
(1) \( \sqrt{116} \mathrm{~m} / \mathrm{s} \)
(2) \( \sqrt{32} \mathrm{~m} / \mathrm{s} \)
(3) \( 5 \mathrm{~m} / \mathrm{s} \)
(4) \( \sqrt{73} \mathrm{~m} / \mathrm{s} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live