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Sagot :
Force = (mass) x (acceleration)
The mass is easy ... it's 155 kg.
The acceleration isn't so easy, mainly because of the units.
In order to get a force in newtons, the acceleration has to be in m/s².
That will take some work.
Acceleration = (change of speed) / time = (100 km/hr) / (10 sec).
(100 km/hr) x (1,000 m/km) x (1 hour / 3,600 sec) = 1000/36 m/s
Acceleration = (1000/36 m/s) / (10sec) = (100/36) m/s²
Force = (mass) x (acceleration) =
(155 kg) x (100/36 m/s²) =
15,500/36 kg-m/s² = 430 and 5/9 newtons =
about 96.9 pounds.
(That's not much force ... mainly because your car only weighs
about 342 pounds.)
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