In Figure (a), a constant horizontal force F is applied to block A, which pushes against block B with a 21.0 N force directedhorizontally to the right. In Figure (b), the same force is applied to block B; now block A pushes on block B with a 13.0 N forcedirected horizontally to the left. The blocks have a combined mass of 12.0 kg. What are the magnitudes of (a) their accelerationin Figure (a) and (b) force F. ?(a) Number i(b) Number iA B(a)UnitsUnitsBA(b)

Answered: directed horizontally to the left. The…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

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In Figure (a), a constant horizontal force F is applied to block A, which pushes against block B with a 21.0 N force directed
horizontally to the right. In Figure (b), the same force is applied to block B; now block A pushes on block B with a 13.0 N force
directed horizontally to the left. The blocks have a combined mass of 12.0 kg. What are the magnitudes of (a) their acceleration
in Figure (a) and (b) force F. ?
(a) Number i
(b) Number i
A B
(a)
Units
Units
BA
(b)

Expert Solution

Step 1

Under applying same force from any side will give same magnitude of acceleration.

Let, $m_{1}, m_{2}$ are the masses of object A and object B respectively, also consider acceleration of the two body system is a.

Then, net force, $F_{a} = (m_{1} + m_{2}) a$

Again, according to figure (a) $F_{a}$ is acting on object A and so the object B pushes object A with force 21.0 N. then the reaction force 21 N is the reason for acceleration of object B.

Again, according to figure (b) $F_{a}$ is acting on object B and so the object A pushes object B with force 13.0 N. then the reaction force 13 N is the reason for acceleration of object A.

Also total combined mass of two object is 12 kg.

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