Terminal Velocity
- The assumption that air resistance is negligible is often unrealistic. An object traveling through a fluid will alway experience a force opposite to its moving direction, which known as the drag force. Drag force a frictional force, sometime known as air resistance.
- Terminal velocity is the velocity at which a falling body moves through a medium, as air, when the force of resistance of the medium is equal in magnitude and opposite in direction to the force of gravity.
Parachute and Terminal Velocity
![](https://primary.jwwb.nl/public/q/e/c/temp-qxhpqvdlqmczmmnxbocw/dg9ykq/ScreenShot2021-05-27at120042PM.png?enable-io=true&enable=upscale&crop=708%2C670%2Cx0%2Cy0%2Csafe&width=466&height=441)
https://www.concepts-of-physics.com/mechanics/stokes-law-and-terminal-velocity.php
Motion Diagram for Drag Force
![](https://primary.jwwb.nl/public/q/e/c/temp-qxhpqvdlqmczmmnxbocw/jxcrt4/ScreenShot2021-05-27at121209PM-1.png?enable-io=true&enable=upscale&crop=1918%2C965%2Cx0%2Cy0%2Csafe&width=934&height=470)
Velocity-Time Graph For Curiosity Landing (A challenge question)
Looking at the Velocity-Time graph of the landing and come up with a explanation
![](https://primary.jwwb.nl/public/q/e/c/temp-qxhpqvdlqmczmmnxbocw/htpciz/ScreenShot2021-06-05at10341PM.png?enable-io=true&enable=upscale&crop=1440%2C832%2Cx0%2Cy0%2Csafe&width=805&height=465)
Answer and Explanation
![](https://primary.jwwb.nl/public/q/e/c/temp-qxhpqvdlqmczmmnxbocw/xp3mv7/ScreenShot2021-06-05at11445PM.png?enable-io=true&enable=upscale&crop=1536%2C694%2Cx0%2Cy0%2Csafe&width=875&height=395)
![](https://primary.jwwb.nl/public/q/e/c/temp-qxhpqvdlqmczmmnxbocw/oukf5r/image-2.png?enable-io=true&enable=upscale&crop=1523%2C255%2Cx3%2Cy0%2Csafe&width=866&height=145)