Item 5 Part A An 8.00-kg point mass and a 12.0-kg point mass are held in place 5

Question

Item 5 Part A An 8.00-kg point mass and a 12.0-kg point mass are held in place 50.0 cm apart. A particle of mass m is released from a point between the two masses 20.0 cm from the 8.00-kg mass along the Find the magnitude of the initial acceleration of the particle. Express your answer with the appropriate units. line connecting the two fixed masses. 8 m 1.07.10 a= Submit My Answers Give Up Incorrect; Try Again; 4 attempts remaining Part B What is the direction of the initial acceleration of the particle? Acceleration of the particle is toward the 8.00-kg mass. Acceleration of the particle is toward the 12.0-kg mass. Give Up Submit My Answers Correct

Explanation / Answer

gravitational force, Fg = G M1 M2 / d^2

Force on mass m,

F = (6.67 x 10^-11)(8)(m)/0.20^2 - (6.67 x 10^-11)(12)(m)/0.30^2 =

F = 4.45m x 10^-9

a = F / m = 4.45 x 10^-9 m/s^2

(B) toward the 8 kg.

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