contestada

A car is moving on the distance 35km in the time 30minutes,stays 20 minutes,the it moves again vith the velocite 60km/h in 25 minutes:
a)The first velocity on the first part of the road
b)The distance driven on the last part of the road
c)The average velocity in meters/seconds

Respuesta :

velocity = distance/time
v = (35)/(1/2)
v = 70 km/h


60 km/h for 25 minutes
25 minutes = 25/60 hour
    distance= velocity * time
d =(60) * (25/60)
d = 25 km

ΔV = { V(initial) - V(final) } / time
v= (70-60) / (45/60)
average velocity = 13.33 km/h
avg veloticy = 3.7 m/s

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