Saturday

August 30, 2014

August 30, 2014

Posted by **Bob** on Tuesday, May 8, 2012 at 3:42pm.

Objects with masses of 152 kg and 269 kg are separated by 0.45 m. A 53.5 kg mass is placed midway between them.

Find the magnitude of the net gravitational force exerted by the larger masses on the

53.5 kg mass. Answer in units of N.

Leaving the distance between the 152 kg and the 269 kg masses fixed, at what distance from the 269 kg mass (other than infinitely remote ones) does the 53.5 kg mass experience a net force of zero? Answer in units of m.

- Physics!! -
**Elena**, Tuesday, May 8, 2012 at 4:45pmm1 = 152 kg, m2 = 269 kg, m3 = 53.5 kg. d =0.45 m, r =d/2 =0.225 m,

G = 6.672•10^−11 N m2/kg2.

m1 …….….<-------m3--------------> …..m2

F13 F23

F13 = G•m1•m3/r^2,

F23 = G•m2•m3/r^2,

F = F23 – F13,

m1 …….….<-------m3-------> …..m2

F13 F23

F13 = F23,

G•m1•m3/(d-x)^2= G•m2•m3/x^2,

m1/(d-x)^2 =m2/x^2,

Solve for “x”

**Related Questions**

Physics - Given: The universal gravitational con- stant is 6.672 × 10−11 N...

Physics - Given: The universal gravitational con- stant is 6.672 × 10−11 N...

Physics - Given: The universal gravitational con- stant is 6.672 × 10−11 N...

Physics - The mass of a certain neutron star is 1 × 1031 kg (5 solar masses) and...

Physics - The mass of a certain neutron star is 1 × 1031 kg (5 solar masses) and...

Physics - A coordinate system (in meters) is constructed on the surface of a ...

Physics B - Objects with masses of 105 kg and 528 kg are separated by 0.482 m. A...

Physics B - Objects with masses of 105 kg and 528 kg are separated by 0.482 m. A...

physics - In introductory physics laboratories, a typical Cavendish balance for ...

Physics - 1.Two balls, each with a mass of 0.871 kg, exert a gravitational force...