Three identical very dense masses of 7500 kg each are placed on the x axis. One...
Three identical very dense masses of 7500 kg each are placed on the x axis. One mass is at x1 = -100 cm , one is at the origin, and one is at x2 = 380 cm .
What is the magnitude of the net gravitational force Fgrav on the mass at the origin due to the other two masses?
Take the gravitational constant to be G = 6.67×10−11 N⋅m2/kg2 .
Homework Answers
The gravitational forces between two masses m1 and m2 can be given
by
Fg = G m1m2/r2
Therefore, here
Therefore, we find the gravitational forces on the mass at origin(m2) due to m1 and m3 and then subtract them(since they're in opposite directions) in order to find the net force on m2
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