February 20, 2017

Homework Help: Physics ( just need a lil help multiplying

Posted by Bongo on Friday, February 1, 2008 at 4:17pm.

Calculate the force of gravity between a 2.50 kg newborn baby and a 80.0 kg doctor standing 0.250 m away. G = 6.67 E -11 N*m2/kg2

My work

Fg = (Gm1 Gm2) /d^2
m1=2.50 kg
m2=80.0 kg
d=0.250 m
g=6.67 E -11 N*m2/kg2

Fg = (Gm1 Gm2) /d^2
Fg= g ( 2.50 kg)(80.0 kg)/0.250m^2
Fg= (6.67 E -11 N*m2/kg2)( 2.50 kg)(80.0 kg)/0.250m^2

I keep messing up at the end i cant get the right answer. I just needto know how to multiply that last part, im getting confused with the gravity part of it...

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