Simba repakati nepakati rinofamba-famba zvakafanana - matambudziko nemhinduro

1. A 0.1Bhora re -kg, rakasungirirwa kumagumo kwetambo yakatambanuka, rinotenderedzwa mudenderedzwa reradius 50 masendimita uye bhora kumhanya kwekona is 4 rad s^-1. Hukuru hwepakati pechikamu (centripetal) hwakaita sei? simba?

Zvinozivikanwa:

Misa (m) = magiramu zana = 100/1000 kg = 1/10 kg = 0.1 kg

Kumhanya kwekona (ω) = 4 radians/smamiriro

Radhiyasi (r) = 50 cm = 50/100 m = 0.5 m

Zvaidiwa: Simba repakati

Solution:

Simba repakati (centripetal force) isimba rinobva mukugadzira kukurumidza kwepakati :

∑F = ma_r

∑F = mv²/r = m ω² r

∑F = simba remagetsi = simba repakati, m = uremu, v = havukavu, ω = kumhanya kwekona, r = radius

∑F = m ω² r = (0.1)(4)² (0.5) = (0.1)(16)(0,5) = 0.8 Newtons

2. Bhora riri kutenderera zvakaenzana mudenderedzwa rakatwasuka. Kana kumhanya kukachinja kusvika pakapetwa kana kupfuura kukosha kwekutanga, simba repakati penyika rinoita sei…..

Zvinozivikanwa:

Misa = m

havukavu =v

Kumhanya kwekutanga = v_o

Radhiyasi (r) =r

Kuda: Hukuru hwesimba repakati

Solution:

3. Mutsetse we radius R wakagadzirwa nenzira yekuti mota ifambe nekumhanya kwe 12 ms^-1 inogona kutaurirana zvakachengeteka. Chiyero che kukweshana kwemamiriro ezvinhu pakati pemotokari nemugwagwa = 0.4. Chii chinonzi radius R. Kuwedzera nekuda kwegiravhiti (g) = 10 ms^-2.

Zvinozivikanwa:

havukavu (v) = 12 m/s

Kukweshana kwekusagadzikana (μ_s) = 0.4

Kuwedzera nekuda kwegiravhiti (g) = 10 m/s²

Kuda: Nharaunda (R)

Solution:

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