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if INSTEAD, when the mass is at the point B, we are told that the surface of the

ID: 2178317 • Letter: I

Question

if INSTEAD, when the mass is at the point B, we are told that the surface of the tube only above point C HAS friction, and that the average frictional force is 35.2N, find the new maximum height above point B to which the mass rises Two spherical masses of m1 = 400.0 kg and m2 = 250.0 kg are separated from their centers by 8.00 meters, as shown. find the gravitational field at print A which is 5.00 m from m1 and is on the line between the two masses A small mass of m3 = 2.00 kg is placed at B, on the line connecting the centers of the two larger masses. How far is point B from mass m1 if the force on m3 due to the larger mass m1 is four times as large as the force on m3 due to the smaller mass m2?

Explanation / Answer

F = Gm1/d^2-Gm2/d2^2 = G*400/25 - G*250/9 = 7.856 x 10^-10 N (TOWARDS m2)

b) Gm1/x^2 = Gm2/(d-x)^2
=> 400/x^2 = 250/(8-x)^2
=> 20/x = 510/8-x

=> x = 32/(4+10)

Hope my short and clear explanation helped :)