Answer: KCI stands for kinetic corporation inc its a global corporation that produces medical technology related to the wounds and healing wounds
(i hope that's what you meant)
Explanation:
From Newton's second law of motion, it is identified that the net force applied to the object with mass m, will make it move with an acceleration of a. This can be mathematically translated as,
F = m x a
To solve for the mass of the sled, we derive the equation above such that,
m = F / a
Substituting,
m = (18 N) / (0.39 m/s²)
m = 46.15 kg
Then, we add to the calculated mass the mass of the extra material.
total mass = 46.15kg + 4.5 kg
total mass = 50.65 kg
We solve for the normal force of the surface to the object by calculating its weight.
F₂ = (50.65 kg)(9.8 m/s²)
F₂ = 496.41 N
The force that would allow barely a movement for the object is equal to the product of the normal force and the coefficient of kinetic friction.
F = (F₂)(c)
c = F/F₂
Substituting,
c = 18 N/496.41 N
c = 0.0362
<em>ANSWER: c = 0.0362</em>
Ride in a car down the street: constant velocity,
come to a red light: negative acceleration,
wait for the green light: zero velocity,
<span>start off again: </span>positive acceleration
Under constant acceleration the position versus time equation is:
X = Xo + Vo*t + a * (t^2) /2
Where:
Xo is the initial position
Vo is the initial velocity
t = time
a = acceleration
That equation is a second grade polynomial which is a parabola.
So the word that completes the statement is "parabola".
Answer: parabola
Total Mechanical Energy = KE + PE
KE = (1/2)mv²
= (1/2)*8*20² = 1600 J
PE = mgh g ≈ 10 m/s²
= 8 * 10 * 85 = 6800J
Total Mechanical = 1600 + 6800 = 8400 J.
