45 km east and turned around and went 90 m west. In km what is the distance and displacement
To determine the distance and displacement of the journey described, let's break it down:
1. **Distance**: This is the total path length traveled regardless of direction.
- First part of the journey: 45 km east
- Second part of the journey: 90 m west (which is 0.09 km)
Total distance = 45 km + 0.09 km = 45.09 km
2. **Displacement**: This is the straight-line distance from the starting point to the ending point, considering the direction.
- Starting point = 0 km
- After traveling 45 km east, you are at +45 km.
- After traveling 90 m (0.09 km) west, you subtract that distance from the east position:
Displacement = 45 km - 0.09 km = 44.91 km east
### Summary:
- **Distance**: 45.09 km
- **Displacement**: 44.91 km east