Whakatauhia ngā wāhanga whārite

Ngā rapanga kua whakatauhia i roto i ngā whārite – te whakatau i ngā wāhanga whārite

1. Ka hangaia he koki 30 ^° ki te tuaka-x e te kaha o te 20 Newton. Kimihia ngā wāhanga x me te y o te kaha.

otinga

F _x = F cos 30 ^o = (20)(cos 30 ^o ) = (20)(0.5 √ 3 ) = 10 √ 3 Ngā Newton

F _y = F hara 30 ^o = (20)(hara 30 ^o ) = (20)(0.5) = 10 Newtons

[irp]

2. Ka hangaia e F ₁ = 20 he koki 30 o a Newton ^me te tuaka y, ā, ka hangaia e F ₂ = 30 he koki 60 o a Newton ^me te tuaka -x. Kimihia ngā wāhanga x me y o F ₁ me F ₂.

otinga

F _1x = F ₁ cos 60 ^o = (20)(cos 60 ^o ) = (20)(0.5) = -10 Newton (kino nā te mea he rite te ahunga ki te tuaka -x)

F _2x = F ₂ cos 60 ^o = (30)(cos 60 ^o ) = (30)(0.5) = -15 Newton (kino nā te mea he rite te ahunga ki te tuaka -x)

F_1y =F₁ hara 60^o = (20)(hara 60^o) = (20)(0.5√3) = 10√3 Newton (he pai nā te mea he rite te ahunga ki te tuaka-y)

F_2y =F₂ hara 60^o = (30)(hara 60^o) = (30)(0.5√3) = -15√3 Newton (kino nā te mea he rite te ahunga ki te tuaka -y)

[irp]

3. F1 ₌ 2 N, F2 ₌ 4 N, F3 ₌ 6 N. Kimihia ngā wāhanga x me y o _F1 , _F2 me _F3!

otinga

F _1x = F ₁ cos 60 ^o = (2)(cos 60 ^o ) = (2)(0.5) = 1 Newton (he pai nā te mea he rite te ahunga ki te tuaka x)

F_2x =F₂ cos 30^o = (4)(cos 30^o) = (4)(0.5√3) = -2√3 Newton (kino nā te mea he rite te ahunga ki te tuaka -x)

F _3x = F ₃ cos 60 ^o = (6)(cos 60 ^o ) = (6)(0.5) = 3 Newton (he pai nā te mea he rite te ahunga ki te tuaka x)

F_1y =F₁ hara 60^o = (2)(hara 60^o) = (2)(0.5√3) = √3 Newton (he pai nā te mea he rite te ahunga ki te tuaka-y)

F _{2 y} = F ₂ sin 3 0 ^o = (4)(sin 30 ^o ) = (4)(0.5) = 2 Newton (he pai nā te mea he rite te ahunga ki te tuaka y)

F_3y =F₃ hara 60^o = (6)(hara 60^o) = (6)(0.5√3) = -3√3 Newton (kino nā te mea he rite te ahunga ki te tuaka -y)

[irp]

[wpdm_package id='542′]

[wpdm_package id='554′]

1. Whakatauhia te hua o te i roto i te rārangi whārite
2. Whakatauhia ngā wāhanga whārite
3. Whakatauhia te hua o ngā whārite e rua mā te whakamahi i te ariā Pythagorean
4. Whakatauhia te hua o ngā whārite e rua mā te whakamahi i te whārite cosine
5. Whakatauhia te hua o ngā whārite e rua mā te whakamahi i ngā wāhanga o ngā whārite