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How do I solve this physics problem?
5ml(1e-3kg/ml) x 12.5m/s = P
P = 80kg x V
Please show step by step on how to solve.
By the way you are solving how much speed a man in space would gain by ejaculating.
1 Answer
- oldschoolLv 78 years agoFavorite Answer
Momentum before Pb = Momentum after Pa
Pb = 0
What is the mass of the ejaculant?
Density = mass/volume so mass = Volume*Density = 5ml * 0.001kg/ml = 0.005kg
The momentum of the ejaculant is then mv = 0.005*12.5 = 0.0625kgm/s
0.0625 = 80*V => V = 0.78125 mm/s = 781.25 micrometers per second
= 2.8125 meters per hour = 9.227 ft/hr
