At the center, when the bob is hanging straight down
Let the rescue boat starts at an angle theta with the North
now its velocity towards East is given as


now in some time "t" it will catch the boy
so we will have

also we have

now we have



by solving above we got

Answer:
220 V
Explanation:

As the resistors are connected in series,

= 20 + 30 + 60
= 110 ohms
V = IR
= 2 * 110
= 220 V
Hope it helps
Answer:
I would say there is friction against the floor, air resistance, and gravity.
Explanation:
So to solve for this problem, this is computed by the
following steps:
Vp / Vs ( = Np / Ns
Where:
Vp = Voltage Primary
Vs = Voltage Secondary
Np = Turn ratio Primary
Ns = Turn ratio Secondary.
So plugging in our values: <span>
110 / 4.9 = N</span>p / Ns<span>
N</span>p / Ns =22.44, so <span>the answer is 22 coils.</span>