A 1500 kg point mass (A) and a 1200 kg point mass (B) are held in place 1.00 m a

ID: 1289935 • Letter: A

Question

A 1500 kg point mass (A) and a 1200 kg point mass (B) are held in place 1.00 m apart on a frictionless table. A third point mass is placed between the masses 20.0 cm from B along the line connecting A and B and then released. Find the magnitude and direction (toward A or toward B) of the acceleration of the third mass just after it is released I A 1500 kg point mass (A) and a 1200 kg point mass (B) are held in place 1.00 m apart on a frictionless table. A third point mass is placed between the masses 20.0 cm from B along the line connecting A and B and then released. Find the magnitude and direction (toward A or toward B) of the acceleration of the third mass just after it is released I A 1500 kg point mass (A) and a 1200 kg point mass (B) are held in place 1.00 m apart on a frictionless table. A third point mass is placed between the masses 20.0 cm from B along the line connecting A and B and then released. Find the magnitude and direction (toward A or toward B) of the acceleration of the third mass just after it is released

Explanation / Answer

Gravitational field due to A & B at the point where the third mass is placed = G*(1200/0.20^2 - 1500/0.80^2 ) = G/27656.25 m/s^2 and its direction is towards B.

Thus, the acceleration of the third point mass = G/27656.25 m/s^2 (Put the value of G)

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A 1500 kg point mass (A) and a 1200 kg point mass (B) are held in place 1.00 m a

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