What is the meaning of velocity?
2 answers:
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Answer:
Explanation:
Average velocity is defined as the ratio of total displacement of the motion and total time taken in that motion
here we know that initially the sky diver drops without opening parachute by total displacement 625 m
then she open her parachute and drop another 362 m
so first it took time t = 15 s to drop without open parachute
then it took t = 139 s to drop next displacement
so here total displacement is given as
total time is given as
so average velocity is given as
Answer: A (,309.8°)
B (2, 315°)
C (, 26.56°)
Explanation: To transform rectangular coordinates into polar coordinates use:
and
For point A:
°
Point A is in the II quadrant, so we substract the angle for 360° since it is in degrees:
309.8°
Polar coordinates for point A is (, 309.8°)
For point B:
°
Point B is in IV quadrant, so:
315°
Polar coordinates for point B is (, 315°)
For point C:
26.56°
Polar coordinates for point C is (, 26.56°)