Distance= speed x time
distance = 2.6 m/s x 120s
distance= 312 meters
<span>According to the three laws of planetary motion, planetary orbits are in the shape of an "Ellipse"
In short, Your Answer would be Option B
Hope this helps!</span>
Answer: The observing friend will the swimmer moving at a speed of 0.25 m/s.
Explanation:
- Let <em>S</em> be the speed of the swimmer, given as 1.25 m/s
- Let
be the speed of the river's current given as 1.00 m/s.
- Note that this speed is the magnitude of the velocity which is a vector quantity.
- The direction of the swimmer is upstream.
Hence the resultant velocity is given as,
= S — S 0
= 1.25 — 1
= 0.25 m/s.
Therefore, the observing friend will see the swimmer moving at a speed of 0.25 m/s due to resistance produced by the current of the river.
Ball thrown into the air at an angle.