A crate with dimension 12 x 10 x 4in and a mass of 120lbs slides on an inclined plane of dimension 80 x 10 x 3in. Answer following questions: 1. Model the system in ADAMS without friction and compare your result with the analytical solution 2. Model the system in ADAMS with friction coefficients, μs=0.4 and μd= 0.3 and and find the minimum inclination that will ensure that a crate slides off an inclined plane. Find the value of the crate's constant acceleration. compare and verify your result with the analytical solution. 3. For previous part, simulate the model for an end time of 0.5 seconds and plot the create acceleration vs. time. Show all the calculations and results clearly

the body's situation won't change the forces are equal opposit and on the same body

anchor = archer //

scattering of light by tiny particles in air to produce the colors we see on sky, is dependent on the following factors:

(i) wavelength of light

(ii) size of the scattering particle  

(iii) distance traveled by light through the atmosphere.

according to rayleigh's law of scattering, the amount of scattering is inversely proportional to the fourth power of its wavelength. shorter the wavelength, greater is its scattering. hence violet/blue light is scattered more than red.

sun's light is a composite light ( visible light) with wavelengths in the range 400 nm (violet) to 700 nm (red). as sunlight passes through our atmosphere, the molecules of air scatter light according to their wavelengths. during sunrise and sunset, the sun's position is below the horizon. hence light from the sun travels a greater distance in the atmosphere when compared to its position a noon.

as sunlight enters the earth's atmosphere, blue light is scattered away and at the end of its journey in the sky, only red and orange wavelengths remain in the beam.

hence at sunrise and sunset, the sky appears reddish orange.