2 Ngā tauira o ngā pātai taurite matūriki
1. Kei te whakairihia tētahi mea he 10 kg te taumaha ki runga i tētahi taura. Tātaihia te kukū o te taura (T)! g = 10 m/s2
Kōrero
2. E iri ana tētahi mea ki ngā taura e rua e whakaaturia ana i te pikitia. Ko te taumaha o te mea = 10 kg. Ko te kaha kume i waenganui i ngā taura e rua e tautoko ana i te kawenga ko…
Kōrero
(whakaahua maui) te kawenga, te taura me te tautoko, (whakaahua matau) te hoahoa o ngā kaha e pā ana ki te kawenga.
Taitara:
w = te kaha o te taumaha o te mea = mg = (10 kg)(10 m/s)2) = 100 kg m/s2
T1 = te kaha kume o te taura 1
T1x = te kaha kume o te taura 1 i te tuaka-x = T1 whaimana 45o = 0,7 T1
T1y = te kaha kume o te taura 1 i te tuaka-y = T1 hara 45o = 0,7 T1
T2 = te kaha kume o te taura 2
T2x = te kaha kume o te taura 2 i te tuaka-x = T2 whaimana 45o = 0,7 T2
T2y = te kaha kume o te taura 2 i te tuaka-y = T2 hara 45o = 0,7 T2
Āhuatanga 1 : kei roto te mea i te taurite pumau mēnā he kore te uara o te kaha e pā ana ki te mea.
Whakaarohia ngā wāhanga o te kaha e mahi ana i te ahunga poutū (tuaka-y).
Inaianei whakaarohia ngā wāhanga o te kaha e mahi ana i te ahunga whakapae (tuaka-x).
