Answer:
<h3>An object which moves in the negative direction has a negative velocity</h3><h3>If the object is slowing down then its acceleration vector is directed in the opposite direction as </h3><h3>its motion</h3>
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
D. 7.03 m/s^2
Acceleration is equal to the change in velocity divided by the elapsed time:
a = 60.0/8.53 = 7.0339
You could put sheet metal lining the bottom or something similar to that.. yOU could use rubber to make it have more friction
Answer:
10 km/s^2
Explanation:
Acceleration = velocity/time
a= 70km/7s
= 10km/s^2