Umfutho kanye nokushukuma - izinkinga nezixazululo

1. Ibhola elincane liphonswa ngokuvundlile ngesivinini esingaguquki esingu-10 m/s. Ibhola lishaya udonga futhi liphinde libonakale ngesivinini esifanayo. Luyini ushintsho ku- linear momentum yebhola?

Kwaziwa:

Isisindo (m) = 0.2 kg

Isivinini sokuqala (v _o ) = -10 m/s

Isivinini sokugcina (v _t ) = 10 m/s

Izimpawu zokuhlanganisa kanye nokususa zibonisa ukuthi izinto zihamba ngendlela ehlukile.

Okufunwayo : ushintsho ku-momentum eqondile (Δp)

Isixazululo:

Ifomula yoshintsho ku-momentum eqondile :

Δp = mv _t – mv _o = m (v _t – v _o )

Ushintsho ku-momentum eqondile:

Δp = 0.2 (10 – (-10)) = 0.2 (10 + 10)

Δp = 0.2 (20)

Δp = 4 kg m/s

2. Ibhola elingamagremu ayi-10 liwela ngokukhululeka lisuka endaweni ephakeme, lishaye phansi ngesivinini esingu-15 m/s, bese libuyela phezulu ngesivinini esingu-10 m/s. Thola ukuthi i-pulse ingakanani!

Kwaziwa:

Isisindo (m) = 10 amagremu = 0.01 kg

Ijubane lokuqala (v _o ) = -15 m/s

Ijubane lokugcina (v _t ) = 10 m/s

Okufunwayo: Impulse (I)

Isixazululo:

I-impulse (I) ilingana noshintsho ku-momentum (Δp)

I = mv _t – mv _o = m (v _t – v _o )

Umfutho:

I = 0.01 (10 – (-15)) = 0.01 (10 + 15)

I = 0.01 (25)

I = 0.25 kg m/s

3. Ibhola elingamagremu angu-200 laphonswa ngokuvundlile ngesivinini esingu-4 m/s, bese ibhola lishaywa ngendlela efanayo. Ubude bebhola uma lithintana nebhethi buyimizuzwana engu-2 mil l kanti isivinini sebhola ngemva kokushiya ibhethi singu-12 m/s. Ubukhulu bamandla asetshenziswa ngumshayi ebholeni bungu …

Kwaziwa:

Isisindo (m) = 200 amagremu = 0.2 kg

Ijubane lokuqala (v _o ) = 4 m/s

Ijubane lokugcina (v _t ) = 12 m/s

Isikhawu sesikhathi (t) = 2 milliseconds = (2/1000) imizuzwana = 0.002 imizuzwana

Okufunwayo : Ubukhulu bamandla (F)

Isixazululo:

Ifomula ye-impulse:

I = F t

Ifomula yokushintsha komfutho:

mv _t – mv _o = m (v _t – v _o )

I-impulse (I) ilingana noshintsho ku-momentum (Δp)

I = Δp

F t = m (v _t – vo _o )

F (0.002) = (0.2)(12 – 4)

F (0.002) = (0.2)(8)

F (0.002) = 1.6

F = 1.6 / 0.002

F = 800 Newton

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1. Izinkinga zomugqa wejubane kanye nezixazululo
2. Izinkinga zejubane kanye nezixazululo zomfutho
3. Ukushayisana okunwebeka ngokuphelele ezinkingeni nezixazululo zobukhulu obubodwa
4. Ukushayisana okune-elastic ngokuphelele ezinkingeni nezixazululo zobukhulu obubodwa
5. Ukushayisana kwe-inelastic ezinkingeni nezixazululo zobukhulu obubodwa