Kukurumidza kwepakati pepakati - matambudziko nemhinduro

1. Bhora, rakasungirirwa kumagumo kwetambo yakatambanudzwa, rinotenderedzwa mudenderedzwa reradius 20 cm. Bhora iri rinotenderera 360 cm.^o Sekondi yega yega. Sarudza hukuru hwe kukurumidza kwepakati!

Zvinozivikanwa:

Kumhanya kwekona (ω)= = 360^o/yechipiri = 1 revolution/yechipiri = 6.28 radians/yechipiri

Nharaunda (r) = 20 cm = 0.2 M

Zvaidiwa: Kukurumidza kwepakati pepakati (a_r)

Solution:

a_r =v² /r —> v = r ω

a_r = (r ω)² / r = r² ω² /r

a_r =r ω²

a_s = kukurumidza kwepakati, v = kumhanya kwakatwasuka, r = dhayasi, ω = angular velocity

Kukura kwekumhanya kwepakati pepakati :

a_r =r ω² a_r = (0,2 m)(6.28 rad/s)

a_r = 1.256 m/s²

2. Vhiri re30 cm mu radius rinotenderera ne 180 rpm. Tsvaga kuti centripetal acceleration yepoindi iri pamucheto wevhiri iri kutenderera sei!

Zvinozivikanwa:

Nharaunda (r) = 30 cm = 0.3 m

Kumhanya kwekona (ω) = 180 revolutions / 60 seconds = 3 revolutions / second = (3)(6.28 radians) / second = 18.84 radians/second

Zvaidiwa: kukurumidza kwepakati (a_r) ye r = 0.3 m

Solution:

Kukura kwekumhanya kwepakati pesimba:

a_r =r ω²

a_r = (0.3 m)(18.84 rad / s)

a_r = 5.65 m/s²

3. Motokari yemujaho inofamba panzira yakatenderera ine radius yemamita makumi mashanu. Kana kumhanya kwemotokari kuri 72 km/awa, tarisa kukura kwekumhanya kwepakati!

Zvinozivikanwa:

Nharaunda (r) = 50 mamita

Kumhanya (v) = 72 km/awa = (72)(mamita 1000) / 3600 masekondi = 20 mamita/sekondi

Wanted : hukuru hwekumhanya kwepakati pesimba (a_r)

Solution:

a_r =v² / r = 20² / 50 = 400 / 50 = 8 m/s²

4. Mota ine kumhanya kwakanyanya kwepakati pe10 m/s², kuitira kuti mota ikwanise kutendeuka isina kutsvedza kubva munzira yakakombama. Kana mota iri kufamba ne108 km/awa, muganhu wekona isina kuvharwa ndewei?

Zvinozivikanwa:

Kukurumidza kwepakati (a_r) = 10 m/s²

Kumhanya kwemotokari (v) = 108 km/h = (108)(1000) / 3600 = mamita makumi matatus/second

Zvaidiwa: radius (r)

Solution:

r =v² / ivo_r

r = 30² / 10 = 900 / 10 = 90 mamitas

[wpdm_package id='433′]

[wpdm_package id='439′]

1. Kuchinja mayuniti emakona emuenzaniso matambudziko nemhinduro
2. Matambudziko emuenzaniso wekutama kweAngular uye linear displacement uye mhinduro
3. Matambudziko emuenzaniso wekumhanya kweAngular uye kumhanya kwemutsara ane mhinduro
4. Matambudziko emuenzaniso wekumhanyisa kweAngular uye wekumhanyisa mutsara ane mhinduro
5. Muenzaniso wematambudziko ekufamba kwakatenderera kwakafanana nemhinduro
6. Matambudziko emuenzaniso wekumhanyisa kweCentripetal nemhinduro
7. Matambudziko emhando dzakasiyana dzemafambiro edenderedzwa ane mhinduro dzakasiyana