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alexdok [17]
3 years ago
6

Un mobil parcurge distanta dintre 2 localitati in 2 etape: in prima etapa parcurge d1+40km cu viteza v1=50km/h, apoi parcurge d2

=60km cu v2=60km/h. Care este v medie?
Physics
1 answer:
Oksanka [162]3 years ago
3 0

Răspuns: 55 km / oră

Explicaţie:

Dat fiind :

Prima etapă de călătorie:

Distanța parcursă = d1 = 40km

Viteza (v1) = 50 km / oră

A doua etapă de călătorie:

Distanța parcursă = d2 = 60km

Viteza (v2) = 60km / hr

Viteza medie = (viteza primei etape + viteza celei de-a doua etape) / 2

Viteza medie = (50 + 60) km / h ÷ 2

Viteza medie = 110km / h ÷ 2

Viteza medie = 55 km / oră

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