Speed and velocity are both measured using the same units. The SI unit of distance and displacement is the meter. The SI unit of time is the second. The SI unit of speed and velocity is the ratio of two — the meter per second.
Source: https://physics.info/velocity/
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Answer: a) V = 9.81 m/a
b) S = 3.905m
c) V2 = 8.29m/s
d) Yes. The speed reduces.
Explanation:
Please find the attached files for the solution
Explanation:
Let us assume that the question says,"In a shower connected in summer and winter positions, with the following characteristics: 220V - 2200W / 4400W. Calculate the electric current that circulates at the lowest (summer) and highest (winter) power, with the same voltage. Tip: isolate the electric current in the expression P = Ix V
"
It is given that,
In a shower connected in summer and winter positions, with the following characteristics: 220 V - 2200 W / 4400 W.
It means lowest power is 2200 W and highest power is 4400 W
For lowest power,
I = electric current for summer
For highest power,
I' = electric current for winters