- #1

mithil03

- 9

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Assume a 100 kg reflective load with 1m2 area at a distance of 1 million kilometers from

the surface of the sun. If the sun’s temperature is 6000K and radius is 695,000 km, find

the radiation pressure exerted on the object. Find how far the load would be from its

initial position after 10 days assuming it started at rest.

I went through the internet and found that

p= W (1+p)/c

Where p – pressure

c – speed of light, 3 ·108 m/sec

W – radiation flux (near the Earth ~1400 W/m2, so-called solar constant

p – overall surface reflectance (from 0 to 1)

But i couldn't relate the Flux value for other distances, and Why would they give the Temperature and radius of the sun ?

Help please..