Question

V1 = 36 км/чV2 = 10 м/сV3 = 54 км/ч t1=t2=t3V средняя - ?

Answer 1

Ответ:

42 км/ч

Объяснение:

дано

U1 = 36 км/ч

U2 = 10 м/с  = 36 км/ч

U3 = 54 км/ч

t1=t2=t3  = t

найти

U средняя - ?

решение

Uсp = S/T = (U1t1+U2t2+U3t3)  / (t1+t2+t3) =

                =  t (U1+U2+U3)  / 3t = (U1+U2+U3)  / 3 =

               = (36+36+54)  / 3 = 42 км/ч

Answer 2

To find the average velocity, we need to convert all the given velocities to a consistent unit. Let's convert them all to meters per second (m/s).

V1 = 36 km/h To convert km/h to m/s, we multiply by (1000 m / 1 km) and divide by (3600 s / 1 h):

V1 = (36 km/h) * (1000 m / 1 km) * (1 h / 3600 s) = 10 m/s (approximately)

V2 = 10 m/s (given)

V3 = 54 km/h Similarly, we convert km/h to m/s:

V3 = (54 km/h) * (1000 m / 1 km) * (1 h / 3600 s) ≈ 15 m/s

Now, we can find the average velocity (Vavg) by taking the arithmetic mean of the three velocities:

Vavg = (V1 + V2 + V3) / 3 = (10 m/s + 10 m/s + 15 m/s) / 3 = 35 m/s / 3 ≈ 11.67 m/s

Therefore, the average velocity is approximately 11.67 m/s.