# Fisika Study Center

## Physics Olympiads Series Problem 20

physics.fisikastudycenter.com, physics olympiads series problem 20. Inclined plane, force, statics friction and newton's laws.

Problem 20
A mass m = 10 kg is held at rest on an inclined planed, whose slope is θ = 53°, by means of a horizontal force F (see Figure). The coefficient of statics friction is μ = 0.2, find the maximum F allowed before the body starts to move up the plane, use the acceleration due to gravity g = 10 m ⋅ s−2 and tan 53°= 4/3

## Physics Olympiads Series Problem 19

Fisikastudycenter.com,- Physics Olympiads Problems Series, Question #19, newton's law, mechanics, system acceleration, for beginner.

Problem # 19
Given three blocks m1 = 3 kg, m2 = 5 kg and m3 = 2 kg being pushed across a frictionless floor by force F = 75 N shown in figure below. The slope has θ = 37° . Find the contact force between the block 1 and block 2, use sin 37 ° = 3/5 and the acceleration due to gravity g = 10 m/s2 !
Problem source : Fisikastudycenter.com-Modifikasi Soal Tes Seleksi Olimpiade Fisika Tingkat Kabupaten /Kota Tahun 2011

## Physics Olympiads Series Problem 18

Fisikastudycenter.com, Olympiads Problems Series in mechanics, newton's second law, forces, acceleration, physics olympic events preparation for beginner.

Problem 18
Given three blocks m1 = 3 kg, m2 = 5 kg and m3 = 2 kg being pushed across a frictionless floor by horizontal force F = 20 N shown in figure below. Find the contact forces that are acting on each block!
Problem source : Fisikastudycenter.com-Modification of Indonesian Physics Olympiad Selection Test - District Level Year 2011

## Physics Olympiads Series Problem 17

Fisikastudycenter.com, Physics Olympiads Problem Series in mechanics, newton's law, acceleration and contact force for beginner level.

Problem 17
Three blocks (mA = 3 kg, mB = 5 kg and mC = 2 kg that are touching each other in a frictionless ramp with θ = 37°, shown in the figure below. A force F of 75 N is applied on mA. Find the system acceleration, use sin 37 ° = 3/5 and the acceleration due to gravity g = 10 m/s2
Problem Source : Fisikastudycenter.com-Modifikasi Soal Tes Seleksi Olimpiade Fisika Tingkat Kabupaten /Kota Tahun 2011

## 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

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