The car traveled 2 hours on a good road at 100 km / h and 30 minutes on gravel at 20 km / h. Find the movement of the car.
| November 24, 2020 | education
V1 = 100 km / h
t1 = 2 hours
V2 = 20 km / h
t2 = 30 minutes
S1 – path on a good road
S2 – path over gravel
So – all the way
S1 = V1 * t1
S1 = 2 * 100 = 200 (km)
S2 = V2 * t2
t2 = 30 minutes = 0.5 hours
S2 = 0.5 * 20 = 10 (km)
So = 200 + 10 = 210 (km)
Answer: 210 km – moving the car.
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