Verified answer

Ответ:

μ=0.2

Объяснение:

T=1.57 c    vm=0.5 м/с    μ=?

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m*am=μ*m*g  ---> μ=am/g

ω=2*π/T

am=ω²*A

A=vm/ω

μ=2*π*vm/(g*T)=2*3.14*0.5/(10*1.57)=0.2

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