Answer:
The expression for the magnitude of the accelerations is ![a=\frac{g(M-m)}{M+m}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7Bg%28M-m%29%7D%7BM%2Bm%7D)
Explanation:
According the Newton´s second law:
![Mg - T=Ma,for-mass-M\\T-mg=ma,for-mass-m](https://tex.z-dn.net/?f=Mg%20-%20T%3DMa%2Cfor-mass-M%5C%5CT-mg%3Dma%2Cfor-mass-m)
Clearing T for second equation:
T = ma + mg
Replacing in the first equation:
Mg - ma - mg = Ma
Ma + ma = Mg - mg
a(M + m) = g(M - m)
![a=\frac{g(M-m)}{M+m}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7Bg%28M-m%29%7D%7BM%2Bm%7D)
Answer A: It will rotate to the right
Answer B: it will rotate to the left
Answer C: 17.5 N
Answer D: 2.25 m
Answer:
104653.13J
Explanation:
Given parameters:
Mass of roller coaster = 625kg
Speed = 18.3m/s
Unknown:
Kinetic energy = ?
Solution:
The kinetic energy is the energy due to the motion of a body.
Kinetic energy =
x m x v²
m is the mass
v is the speed
Kinetic energy =
x 625 x 18.3² = 104653.13J
Responder:
Fy = 2474,8737
Fx = 2474,8737
Explicación:
Dado que :
Dado:
Fuerza, F = 3500 N
Ángulo formado con la horizontal, θ, = 45 °
Los componentes de una fuerza se pueden descomponer en componentes verticales y horizontales.
El componente vertical Fy; y
El componente horizontal Fx
Fy = Fuerza * sinθ
Fy = 3500 * sin45 °
Fy = 2474,8737
El componente horizontal:
Fx = Fuerza * cosθ
Fy = 3500 * cos45 °
Fy = 2474,8737
The best answer is:
C & D
**coefficients are the numbers in front of each compound
hope this helped :)