The answer is 12.36. hoped this helped!
Answer:
F = 120 N
Explanation:
Force x distance = energy
The bike has energy 1/2 . 80 . 6^2 = 1440 J
You are looking at an example of not reading the question properly.
Impulse = Force . time = change in momentum
F . 4 = 80 .6
F = 120 N
Ni is Nickel.
He is Helium.
Pb is Lead.
We can solve the problem by using Ohm's law.
The resistance of the person, with dry skin, is

. In order to be felt, the current must be at least

Ohm's law gives us the relationship between current and voltage:

where
I is the current
R the resistance
V the voltage
Using the data of the problem, we find that the minimum voltage needed is