A car moving at a constant speed of 90 km / h overtakes a motorcyclist with a speed of 60 km / h.
| November 23, 2020 | education
A car moving at a constant speed of 90 km / h overtakes a motorcyclist with a speed of 60 km / h. How long after overtaking the distance between them will be 3 km.
A car moving at a constant speed V1 = 90 km / h overtakes a motorcyclist with a speed of V2 = 60 km / h. How long after overtaking the distance between them will be L = 3 km.
In the CO associated with the motorcycle, the vehicle has a speed V = V1-V2
t = L / V = L / (V1-V2) = 3/30 = 0.1 h = 6min = 360 s
Answer t = 360 c
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