Abinary star system consists of two equal mass stars that revolve in circular orbits about their center of mass. the period of the motion, t=25.5 days and the orbital speed =220 km/s of the stars can be measured from telescopic observations. what is the mass of each star?

Explanation:

Given data:

PERIOD OF MOTION IS T = 25.5 days

orbital speeds = 220 km/s

we know that

acceleration due to centripetal force is

Gravitational force

we know that

solving for

we know that

f =ma

solving for m

what are the options.

explanation:

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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