A person is walking on straight road starting with a velocity $v$, the direction of of air ,observed by him makes an angle $\alpha$ with his is direction of motion. Now during the race, he finds direction of air rotates by angle $\alpha$ at a uniform rotating rate. It is given that air is flowing perpendicular to track. Find length of the track.
closed as off-topic by Kyle Oman, Emilio Pisanty, John Rennie, Samuel Weir, Qmechanic♦ Aug 14 at 8:05
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Homework-like questions should ask about a specific physics concept and show some effort to work through the problem. We want our questions to be useful to the broader community, and to future users. See our meta site for more guidance on how to edit your question to make it better" – Kyle Oman, Emilio Pisanty, John Rennie, Samuel Weir, Qmechanic
$\alpha$ the angle the air speed makes with the person
$\omega$ the uniform angular speed
$t = \alpha/\omega$ the time of the race
$vt$ the length of the road, because air friction is considered negligible