Dab tsi yog qhov nres nres ntawm 10 mph?
Dab tsi yog qhov nres nres ntawm 10 mph?

Video: Dab tsi yog qhov nres nres ntawm 10 mph?

Video: Dab tsi yog qhov nres nres ntawm 10 mph?
Video: Huab Vwj & Celesna Lor- Qhov Tawv Tawv-Nkauj Tawm Tshiab 2024, Kaum ib hlis
Anonim
Nres Nroog
Ceev ( mph ) Lub Sijhawm Ua Haujlwm Braking nrug
10 11ft ua 9fta ua
20 22 23
30 33 45

Tom qab ntawd, ib tus tseem tuaj yeem nug, qhov kev ncua deb ntawm 25 mph yog dab tsi?

Lub tsheb txav ntawm qhov ceev ntawm 60 mph yuav taug kev 132 taw ua ntej lub tsheb txawm pib nres . Ib tug mus 25 mph yuav npog txog 55 feet ntawm txoj kev thaum lub sijhawm no.

Ib sab saum toj, qhov kev ncua deb ntawm 45 mph yog dab tsi? Braking Fais Fab/Nres Nres

Ceev Xav nrug deb Braking nrug
20mph ua 20 ko taw (6.1 m) 20ft ua
30 mph 30 ko taw (9.1 m) 45ft ua
40mph ua 40 ko taw (12 m) 80ft ua
50 mph 50 taw (15 m) 125 ko taw

Hauv qhov no, qhov kev ncua deb ntawm 30 mph yog dab tsi?

Nres Nres

Ceev Xav nrug deb 2 Zuag qhia tag nrho Nres Nres
30 mph 30 ko taw 75ft ua
40mph ua 40ft ua 120 ko taw
50 mph 50 ko taw 175ft ua
60 mph 60ft ua 240 ko taw

Nws siv sijhawm ntev npaum li cas txhawm rau nres tsheb mus 15 mph?

(fps = 1.467) MPH ). Yog tias tsheb deceleration tus nqi yog 20 fpsps (ntau dua li yav dhau los xam 15 fps), tiam nres sij hawm = 88/20 = 4.4 vib nas this.

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