A car weighing 1.2 tons is affected by a traction force of 2.2 kN and a resistance force of 1 kN.
| September 7, 2021 | education
A car weighing 1.2 tons is affected by a traction force of 2.2 kN and a resistance force of 1 kN. How long does it take for a car to travel 200 m when moving from a state of rest?
Solution:
Fт-Fc = ma
1200 = 1200a
a = 1 m / s˄2
s = at˄2: 2
400 = t˄2
t = 20 s
Answer: 20 s
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