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ifeelretarded
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Homework Statement
Three blocks are in contact with each other on a frictionless, horizontal surface. A horizontal force F is applied to m1. If m1= 2 kg, m2= 3 kg, m3= 4 kg, and F= 18 N, find (a) the acceleration of the blocks, (b) the resultant force on each block, and (c) the magnitude of the contact forces between the blocks.
Homework Equations
(a) F - N12 = m1a
N21 - N23 = m2a
N32 = m3a
(b) R1 = m1a
R2 = m2a
R3 = m3a
The Attempt at a Solution
(a) I found that a= 2 m/s2
(b) R1 = 4 N
R2 = 6 N
R3 = 8 N
(c) I have no idea what "the magnitude of the contact forces between the blocks" means. Can somebody please tell me if I've done (a) and (b) right? And how to do (c)?