Dziwani kutalika kwakukulu kwa kayendetsedwe ka projectile

Mavuto othetsedwa poyenda ndi zipolopolo - dziwani kutalika kwakukulu

1. Mpira wokankha umachoka pansi pa ngodya θ = 60 ^o ndipo wopingasa uli ndi liwiro loyambirira la 10 m/s. Werengani kutalika kwakukulu! Kuthamanga kwa mphamvu yokoka ndi 10 m/s ².

Zodziwika:

Ngodya (θ) = 60 ^o

Liwiro loyambirira (v _o ) = 10 m/s

Kufunidwa: Kutalika kwakukulu (h)

Yankho:

Gawo loyima la liwiro loyambirira:

sin 60 ^o = v _oy / vo _o

v _oy = v _o tchimo 60 ^o = (10)(tchimo 60 ^o ) = (10)(0.5 √ 3 ) = 5 √ 3 m/s

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

Zodziwika:

Kuthamanga kwa mphamvu yokoka (g) = -10 m/s ² (yoyipa pansi)

Gawo loyima la liwiro loyambirira (v _oy ) = + 5 √ 3 m/s (zabwino mmwamba)

Liwiro lomaliza pa kutalika kwakukulu (v _ty ) = 0

Kufunidwa: Kutalika kwakukulu (h)

Yankho:

v _t ² = v _o ² + 2 gh

0 ² = ( 5 √ 3) ² + 2 (-10) h

0 = 2 5 ( 3) – maola 20

0 = maola 75 - 20

75 = maola 20

h = 75 / 20

h = mamita 3.75

Kutalika kwakukulu ndi mamita 3.75.

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2. Thupi limakwezedwa mmwamba pa ngodya ya 30 ^o ndipo mopingasa kuchokera ku nyumba yokwera mamita 20. Liwiro lake loyamba ndi 4 m/s. Werengani kutalika kwakukulu! Kuthamanga kwa mphamvu yokoka ndi 10 m/s ².

Zodziwika:

Ngodya (θ) = 30 ^o

Kutalika koyambirira (h) = mamita 20

Liwiro loyambirira (v _o ) = 4 m/s

Kuthamanga kwa mphamvu yokoka (g) = 10 m/s ²

Kufunidwa: Kutalika kwakukulu (h)

Yankho:

Gawo loyima la liwiro loyambirira:

sin 30 ^o = v _oy / vo _o

v _oy = v _o tchimo 30 ^o = (4) (tchimo 30 ^o ) = (4) (0.5) = 2 m/s

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

Zodziwika:

Kuthamanga kwa mphamvu yokoka (g) = -10 m/s ² (yoyipa pansi)

Gawo loyima la liwiro loyambirira (v _oy ) = +2 m/s (zabwino mmwamba)

Liwiro lomaliza pa kutalika kwakukulu (v _ty ) = 0

Kufunidwa: Kutalika kwakukulu

Yankho:

Kutalika kwakukulu:

v _t ² = v _o ² + 2 gh

0 ² = 2 ² + 2 (-10) h

0 = maola 4 - 20

4 = maola 20

h = 4 / 20

h = mamita 0.2

Kutalika kwakukulu ndi mamita 0.2 + mamita 20 = mamita 20.2.

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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 zinthu
6. Dziwani liwiro lomaliza