Average velocity =
(distance between start-point and end-point) / (time from start to end)
in the direction of
(direction from the start-point to the end-point) .
a). The average velocity for the first half is
(50m)/(20sec) = 2.5 m/s south.
b). The average velocity for the second half is
(50m)/(22sec) = 2.273 m/s north
c). Average velocity for the round trip is zero, because
the start-point and end-point are the same point.
However ...
Average SPEED = (total distance covered) / (time to cover the distance)
Average SPEED for the round trip is
(100 m) / (42 sec) = 2.381 m/s (rounded)
It’s an assortment of compound molecules
Answer:
option (a)
Explanation:
Wavelength is defined as the distance traveled by the wave in one complete oscillation.
The number of oscillations completed in one second is called frequency.
The relation for the wave velocity is given by
wave velocity = frequency x wavelength
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