Mmegharị otu otu n'ime okirikiri kwụ ọtọ - nsogbu na ngwọta

1. A na-agbagharị bọọlụ dị kilogram 0.2, nke e jikọtara na nsọtụ eriri kwụ ọtọ, n'ime okirikiri nke radius 1 mita, ọsọ kachasị nke bọọlụ ahụ bụkwa 10 rpm. Kedu ka oke ọsọ nke centripetal na oke ike nrụgide si dị?

A maara:

Ibu (m) = 0.2 kg

Redịọs (r) = 1 m

Ọsọ akụkụ (ω) = 10 rev/min = 10 rev/60 s = 0.17 rev/s = (0.17)(6.28 rad)/s = 1 rad/s

Ọsọ ọsọ (v) = r ω = (1 m)(1 rad/s) = 1 m/s

A chọrọ: a _s na Σ F

Ngwọta:

(a) Oke nke ọsọ ọsọ nke centripetal

(b) Oke ike nrụgide ahụ

Σ F = ma

T = ma _s

T = (0.2 kg)(1 m/s ² )

T = 0.2 kg m/s ²

T = 0.2 N

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2. Bọọlụ 1-kg na njedebe nke eriri na-agbagharị n'otu aka ahụ n'ime okirikiri kwụ ọtọ nke radius 1 m. Eriri ahụ ga-agbaji mgbe nrụgide dị na ya gafere 100 N. Kedu ọsọ kachasị elu bọọlụ ahụ nwere ike inwe?

A maara:

Ibu (m) = 1 kg

Redịọs (r) = mita 1

Ike erughị ala (T) = ike centripetal ( Σ F) = 100 N

Achọrọ: v kachasị

Ngwọta:

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