# Fisika Study Center

## Physics Olympiads Series Problem 16

Fisikastudycenter.com, physics olympiads problems series, mechanics, newton's law, contact force, acceleration.

Problem 16
Three bloks (mA = 3 kg, mB = 5 kg and mC = 2 kg are touching each others on a frictionless table shown in this figure.

A force F of 20 N acts on mA. Find the acceleration of the three bloks!
Question source : Fisikastudycenter.com-Modification of Indonesian Physics Olympiads - District / City Level Tets Question Year 2011

Discussion
Combine the three bloks as a system, then apply Newton's law to find the acceleration.

prepared by:
Fisika Study Center

Try This!
4 bloks that are (m1, m2, m3 and m4) touching each other on a frctionless table as shown in the figure below .

a force named F is acting to m1. Find the system acceleration (a), show the answer in F, m1, m2, m3 and m4
Question source : Fisikastudycenter.com-Modification of Indonesian Physics Olympiads - District / City Level Tets Question Year 2011

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