- #1
jFlower
- 9
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< Mentor Note -- thread moved to HH from the technical physics forums, so no HH Template is shown >
I have read every post I've found on here about this subject, but for some reason the answer is elusive - I suspect due to an issue with units.
Here's the problem.
vInitial = 0 meters / sec
Mass = 1600kg (about the weight of a car)
Power going into mass = 74600watts (100hp)
Frictional forces = 0
So, I calculate acceleration = 74600 / 1600, or 46.6 mps^2 <- this must be the problem
Then to apply the acceleration, I'm running a computer simulation running at 60hz, so time is 1/60, like so
timeStep = 1/60
velocity = velocity + acceleration * timeStep
Within 0.6 seconds or so velocity hits 100kph (27.7meters per second) which makes sense since ~0.6 times 46.6 = 27.7). What am I doing wrong?
I have read every post I've found on here about this subject, but for some reason the answer is elusive - I suspect due to an issue with units.
Here's the problem.
vInitial = 0 meters / sec
Mass = 1600kg (about the weight of a car)
Power going into mass = 74600watts (100hp)
Frictional forces = 0
So, I calculate acceleration = 74600 / 1600, or 46.6 mps^2 <- this must be the problem
Then to apply the acceleration, I'm running a computer simulation running at 60hz, so time is 1/60, like so
timeStep = 1/60
velocity = velocity + acceleration * timeStep
Within 0.6 seconds or so velocity hits 100kph (27.7meters per second) which makes sense since ~0.6 times 46.6 = 27.7). What am I doing wrong?
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