1. Hele kekahi mea ma ka wikiwiki mau o 10 m/s. E helu i ka momentum linear o ka mea.
ʻIke ʻia :
Nuipaʻa (m) = 1 kg
Ka wikiwiki (v) = 10 m/s
Makemake ʻia: momentum linear (p)
Lōlā:
ʻO ke ʻano o ka momentum linear:
p = mv
p = ka momentum linear, m = ka nuipa, v = ka wikiwiki
ʻO ka momentum linear:
p = mv = (1)(10) = 10 kg m/s 2
ʻAʻole maopopo
2. Neʻe kahi poloka 2-kg a me kahi poloka 4-kg ma kahi wikiwiki mau 20 m/s. He aha ka momentum linear o nā poloka.
ʻIke ʻia:
Ka nuipa o ka poloka A (m A ) = 2 kg
Ka nuipa o ka poloka B (m B ) = 4 kg
Ka wikiwiki o ka poloka A (v A ) = 20 m/s
Ka wikiwiki o ka poloka B (v B ) = 20 m/s
Makemake ʻia: Ka momentum linear o ka poloka A (p A ) a me ka momentum linear o ka poloka B (p B )
Lōlā:
Ka momentum linear o ka poloka A :
p A = m A v A = (2)(20) = 40 kg m/s
Ka momentum linear o ka poloka B :
p B = m B v B = (4)(20) = 80 kg m/s
ʻAʻole maopopo
3. Neʻe kahi poloka 2-kg ma kahi paʻa 2 m/s a neʻe kahi poloka 2-kg ma kahi paʻa 4 m/s. E hoʻoholo i ka momentum linear o nā poloka.
ʻIke ʻia:
Ka nuipa o ka poloka A (m A ) = 2 kg
Ka nuipa o ka poloka B (m B ) = 2 kg
Ka wikiwiki o ka poloka A (v A ) = 2 m/s
Ka wikiwiki o ka poloka B (v B ) = 4 m/s
Makemake ʻia: ka momentum linear o nā poloka
Lōlā:
Ka momentum linear o ka poloka A :
p A = m A v A = (2)(2) = 4 kg m/s
Ka momentum linear o ka poloka B:
p B = m B v B = (2)(4) = 8 kg m/s
ʻAʻole maopopo
4. He mea 5-kg i ka wā hoʻomaha. He aha ka momentum linear o ka momentum.
ʻIke ʻia:
Nuipaʻa (m) = 5 kg
Ka wikiwiki o ka mea (v) = 0
Makemake ʻia : ka momentum linear (p)
Lōlā:
p = mv = (5)(0) = 0
[wpdm_package id='1155′]
- Nā pilikia a me nā hoʻonā o ka momentum linear
- Nā pilikia a me nā hoʻonā o ka momentum a me ka impulse
- Nā pilikia a me nā hoʻonā o nā kuʻi elastic kūpono i hoʻokahi ana
- Nā pilikia a me nā hoʻonā no nā kuʻi ʻana inelastic kūpono i hoʻokahi ana
- Nā pilikia a me nā hoʻonā no nā collisions inelastic i hoʻokahi ana
