Dziwani malo a chinthu chomwe chikuyenda mozungulira

Mavuto othetsedwa pakuyenda kwa projectile - kudziwa malo a chinthu

1. Thupi limakwezedwa mmwamba pa ngodya ya 60^o ku yopingasa yokhala ndi liwiro loyambirira la 12 m/s. Dziwani malo a chinthucho mutasuntha kwa sekondi imodzi! Kuthamanga kwa mphamvu yokoka ndi 10 m/s².

Zodziwika:

Ngodya (θ) = 60^o

Poyamba kuthamanga (v_o) = 12 m/s

Nthawi yopuma (t) = sekondi imodzi

Kuthamanga kwa mphamvu yokoka (g) = 10 m / s²

Akufuna: Malo a chinthucho mutasuntha kwa sekondi imodzi

Yankho:

Gawo lolunjika la liwiro loyambirira:

v_ox =v_o cos θ = (12 m/s)(cos 60^o) = (12 m/s)(0.5) = 6 m/s

Gawo loyima la liwiro loyambirira:

v_oy =v_o uchimo θ = (12 m/s)(uchimo 60^o) = (12 m/s)(0.5√3= = 6√3 m / s

Malo a chinthucho molunjika:

Zodziwika:

Chigawo chopingasa cha liwiro (v)_x) = 6 m/s

Nthawi yopuma (t) = sekondi imodzi

Akufuna: malo opingasa (x)

Yankho:

Mamita 6/sekondi amatanthauza kuti mpira umayenda mamita 6 pa sekondi imodzi iliyonse. Mtunda wa mpira ukayenda kwa sekondi imodzi ndi mamita 6. Chifukwa chake malo a mpirawo mopingasa ndi mamita 6.

Malo a chinthucho panjira yoyimirira:

Sankhani njira yopita mmwamba ngati yabwino ndipo njira yopita pansi ngati yoipa.

Zodziwika:

Liwiro loyambirira (v)_o) = 6√3 m/s (zabwino mmwamba)

Nthawi yopuma (t) = sekondi imodzi

Kuthamanga kwa mphamvu yokoka (g) = -10 m/s² (zoyipa pansi)

Akufuna: kutalika mutasuntha kwa sekondi imodzi

Yankho:

h = v_o t + 1/2 gt² = (6√3(1) + 1/2 (-10)(1)²) = 6√3 + (-5)(1) = 6√3 – 5 = 6(1.7) – 5 = 10.2 – 5 = mamita 5.2.

Malo a chinthucho mutasuntha kwa sekondi imodzi:

Kusuntha kopingasa (x) = mamita 6

Kusuntha koyima (y) = mamita 5.2

2. Thupi limakwezedwa mmwamba pa ngodya ya 30^o ku chiwongolero chopingasa kuchokera ku nyumba yotalika mamita 20. Liwiro lake loyamba ndi 50 m/s. Werengani kusuntha koyima thupi likasuntha kwa sekondi imodzi! Kuthamanga kwa mphamvu yokoka ndi 10 m/s².

Zodziwika:

Ngodya (θ) = 30^o

Kutalika koyambirira (h)_o) = mamita 20

Liwiro loyambirira (v)_o) = 50 m / s

Nthawi yopuma (t) = sekondi imodzi

Kuthamanga kwa mphamvu yokoka (g) = 10 m / s²

Akufuna: Kutalika (h)

Yankho:

Gawo loyima la liwiro loyambirira:

v_oy =v_o uchimo θ = (50 m/s)(uchimo 30^o) = (50 m/s)(0.5) = 25 m / s

Kutalika:

Sankhani njira yopita mmwamba ngati yabwino ndipo njira yopita pansi ngati yoipa.

Zodziwika:

Liwiro loyambirira (v)_o) = 25 m/s (zabwino mmwamba)

Nthawi yopuma (t) = sekondi imodzi

Kuthamanga kwa mphamvu yokoka (g) = -10 m / s² (zoyipa pansi)

Akufuna: Kutalika (h)

Yankho:

h = v_o t + 1/2 gt² = (25)(1) + 1/2 (-10)(1)²) = 25 + (-5)(1) = 25 – 5 = mamita 20.

Kutalika kwa thupi pambuyo posuntha kwa sekondi imodzi kumakhala mamita 20 kuchokera pomwe thupi lili zanenedwa kapena mamita 40 pamwamba pa nthaka.

3. Mpira wawung'ono woponyedwa mopingasa ndi liwiro loyambirira v_o = 10 m/s kuchokera ku nyumba yokwera mamita 10. Werengani kusuntha kwa mpira mutatha kusuntha kwa sekondi imodziKuthamanga kwa mphamvu yokoka ndi 10 m/s²

Zodziwika:

Kutalika koyambirira (h) = mamita 10

Liwiro loyambirira (v)_o) = 10 m/s

Nthawi yopuma (t) = sekondi imodzi

Kuthamanga kwa mphamvu yokoka (g) = 10 m/s²

SE basi: Malo a mpira mutasuntha sekondi imodzi!

Yankho:

Kusamutsa kopingasa:

Zodziwika:

Chigawo chopingasa cha liwiro (v)_x) = 10 m/s

Nthawi yopuma (t) = sekondi imodzi

SE basi: Malo a chinthucho

Yankho:

Mamita 10/sekondi amatanthauza kuti chinthucho chimayenda mpaka mamita 10 sekondi iliyonse. Kusuntha Pambuyo posuntha kwa sekondi imodzi, mamita 10. Choncho, kusuntha kopingasa ndi mamita 10.

Kusamutsa koyima:

Zowerengedwa ngati kuyenda kwaulere kwa kugwa.

Zodziwika:

Nthawi yopuma (t) = sekondi imodzi

Kuthamanga kwa mphamvu yokoka (g) = 10 m/s²

Akufuna: Kutalika mutasuntha kwa sekondi imodzi (h)

Yankho:

h = 1/2 gt² = 1/2 (10)(1)²) = (5)(1) = mamita 5.

Pambuyo pa sekondi imodzi, chinthucho chimagwa mpaka mamita 5. Kutalika pamwamba pa nthaka = mamita 10 - mamita 5 = mamita 5.

Malo a chinthucho mutasuntha sekondi imodzi:

Malo a chinthucho pa njira yopingasa (x) = mamita 10

Malo a chinthucho pamalo oyima (y) = mamita 5

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1. Konzani liwiro loyambirira kukhala magawo opingasa ndi olunjika
2. Dziwani kusamuka kopingasa
3. Dziwani kutalika kwakukulu
4. Dziwani nthawi yomwe imatenga nthawi
5. Dziwani malo a chinthucho
6. Dziwani liwiro lomaliza