Subjects
| Sections | |||
|---|---|---|---|
| Intro to 2D Motion | 32 mins | 0 completed | Learn |
| Projectile Motion | 67 mins | 0 completed | Learn |
| More Projectile Motion | 42 mins | 0 completed | Learn |
| Initial Velocity in Projectile Motion | 20 mins | 0 completed | Learn |
| Circular Motion | 27 mins | 0 completed | Learn |
| Additional Practice |
|---|
| Motion in 2D |
| Motion in 2D & 3D With Calc |
| Projectile Motion: Horizontal & Negative Launch |
| Projectile Motion: Positive Launch |
| Projectile Motion: Launch From Moving Vehicle |
| Relative Motion |
The speed of a boat in still water is v. The boat is to make a round trip in a river whose current travels at speed exttip{u}{u}.
Derive a formula for the time needed to make a round trip of total distance exttip{D}{D} if the boat makes the round trip by moving upstream and back downstream.
Derive a formula for the time needed to make a round trip of total distance exttip{D}{D} if the boat makes the round trip by moving directly across the river and back.
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