Answer:
3.1 s
Explanation:
from the question we are given the the following:
Weight of books (Fb) = 305 N
Push force (Fp) = 516 N
distance (s) = 5.82 m
Angle of force exerted = 32 degrees
acceleration due to gravity (g) = 9.81 m/s^{2}
coefficient of friction Uk= 0.59
time (t) = ?
mass of the book (m) = weight / (g) = 305 / 9.8 = 31 kg
lets first get the net force from the summation of vertical forces
Fnet = Fpush + Fgravity
F net = 516 + 305sin32
F net = 677.6 N
now lets get the acceleration from the summation of the horizontal forces
Fpcos32 - friction force = m x a
Fpcos32 - (Uk x F net) = m x a
516cos32 - (0.59 x 677.6) = 31 x a
37.8 = 31a
a = 1.22m/s^{2}
now that we have our acceleration we can get the time from the equation of motion
s = ut + o.5at^{2}
u ( initial velocity ) = 0 because the box was initially at rest
5.82 = (0 x t ) + (0.5 x 1.22 x t^{2})
5.82 = 0.61t^{2}
t = 3.1 s
Destructive force
It’s a force that slowly wears away mountains and other features on earths surface, such as erosion.
The solution would be like this for this specific problem:
F = (G Me Mo) / Re^2
F / Mo = (G Me) / Re^2
G = gravitational constant
= 6.67384 * 10^-11 m3 kg-1 s-2
Me = 5.972 * 10^24 kg
Re^2 = (6.38 * 10^6)^2 m^2
= 40.7044 * 10^12 m^2 = 4.07044 * 10^13 m^2
G Me / Re^2 = (6.67384 * 10-11
* 5.972 * 10^24) / 4.0704 * 10^13 = 9.7196 m/s^2
9.7196 m/s^2 = acceleration
due to Earth’s gravity
Therefore, the value of the composite constant (Gme / r^2e) that is to be
multiplied by the mass of the object mo in the equation above is 9.7196
m/s^2.
The nearby magnet and the electric current both will.
A geocentric system is a part of the astronomical theory which describes the universe. Meaning that it puts the Earth in the CENTER of the universe as a point of view for other objects surrounding it.
