Qhov nruab nrab nres tsheb yog dab tsi?
Qhov nruab nrab nres tsheb yog dab tsi?

Video: Qhov nruab nrab nres tsheb yog dab tsi?

Video: Qhov nruab nrab nres tsheb yog dab tsi?
Video: Qhov Zoo Nyob Tsis Nco Qab Singer By: Xyo Vwj Nkauj Tawm Tshiab May 2021 2024, Kaum ib hlis
Anonim

20ft ua

Ib yam li ib tus tuaj yeem nug, qhov kev ncua deb li cas?

Teb: Tag nrho cov nres deb ntawm 40mph yog 40 x 3 feet = 120 ko taw . 120 ko taw yog kwv yees li 120*(3/10) meters = (120/10)*3 meters = 12*3 meters = 36 meters.

Ib tus kuj tseem yuav nug tau, qhov kev ncua deb ntawm lub tsheb Mus Li Cas ntawm 30mph? Nres kev ncua ntawm qhov sib txawv sib txawv

Ceev Xav + nres nrug Nres deb
20mph ib 6m + 6m 12m (40 ko taw)
30 mph Luas 9 m + 14 m 23m (75 ko taw)
40mph ib Luas 12 m + 24 m 36m (118 ko taw)
50 mph 15m + 38m 53m (174 ko taw)

Ib tus kuj tseem yuav nug tias, qhov kev ncua deb ntawm kev tsav tsheb yog dab tsi?

Nres deb yog tag nrho nyob deb koj taug kev ua ntej koj siv tus nres, ntxiv rau nyob deb koj mus thaum lub brakes qeeb koj. Kev xav deb + nres nres = zuag qhia tag nrho nres deb.

Dab tsi yog qhov kev ncua deb ntawm 70mph?

Braking Fais Fab/Nres Nres Li Cas

Ceev Xav nrug deb Nres Nres Tag Nrho
40mph ua 40 ko taw (12 m) 120 ko taw (37 m)
50 mph 50 taw (15 m) 175 ko taw (53 m)
60 mph 60 ko taw (18 m) 240 ko taw (73 m)
70mph ua 70 ko taw (21 m) 315 ko taw (96 m)

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