Answer:
45.8 cm
Explanation:
To solve this, we will use the formula
5 / x² = 7/(1 - x)²
5 / x² = 7 / (1 - 2x + x²)
5 / 7 = x² / (1 - 2x + x²)
x = 0.5 * (√(35) - 5) meters
x = 0.5 * (5.916 - 5)
x = 0.5 * (0.916)
x = 0.458 or x = 45.8
A population decline follows a period of overshooting.
Based on my knowledge i think the first word response goes to a.
the second one goes to c.
the third one goes to b.
(sorry if this isnt correct)
This movement of the coin relative to the knee is not under an inertial frame, because knee is accelerated relative to the coin.
a) coin acceleration relative to the ground: g = 9.81 m/s^2. This is the acceleration due to the atraction of the earth, given that the coin is not tied to the car or to the knee.
b) coin acceleration relative to the knee: acceleration of the coin relative to the ground - acceleration of the knee relative to the ground = - g - (-1.24g) = 0.24 g = 0.24 * 9.81 m^2^2 = 2.354 m/s^2
c) time to the coin move 2.2 m upward, relative to the car
d = a*t^2 / 2 , where a is the acceleration relative to the car (same of the knee)
=> t = √(2d/a) = √(2*2.2m/2.354 m/s^2) = 1.37 s
d) actual force on the coin
Use the acceleration relative to the ground, a=g = 9.81 m/s^2
F = m*a = 0.567 g * 10^-3 kg/g * 9.81 m/s^2 = 5.56*10^-3 N
e) apparent force
Use apparent acceleration, a = 2.354 m/s^2
F = m*a = 0.567*10^-3 kg * 2.354 m/s^2 = 1.33*10^-3 N
