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27 Nov 2019
Two massless bags contain identical bricks, each brick having amass M . Initially, each bag contains four bricks, and the bagsmutually exert a gravitational attraction F1 on each other. You nowtake two bricks from one bag and add them to the other bag, causingthe bags to attract each other with a force F2.
What is the closest expression for F2 in terms of F1?
A. F2 =3/4F1.
B. F2 = 1/2F1.
C. F2= 1/4F1.
D. F2 = F1 because neither the total mass nor the distance betweenthe bags has changed.
I am thinking it might be D, but I dont want to guess on theproblem, can anyone help me with this and explain why, Im kind oflost :/
Two massless bags contain identical bricks, each brick having amass M . Initially, each bag contains four bricks, and the bagsmutually exert a gravitational attraction F1 on each other. You nowtake two bricks from one bag and add them to the other bag, causingthe bags to attract each other with a force F2.
What is the closest expression for F2 in terms of F1?
A. F2 =3/4F1.
B. F2 = 1/2F1.
C. F2= 1/4F1.
D. F2 = F1 because neither the total mass nor the distance betweenthe bags has changed.
I am thinking it might be D, but I dont want to guess on theproblem, can anyone help me with this and explain why, Im kind oflost :/
Lelia LubowitzLv2
8 Jan 2019
