Hey there I am wondering why gravity is set to 10 by default in all the bullet projects when earths gravity is 9.8? I am trying to figure out how to quanitfy mass into weight.
weight = gravity * mass
http://wiki.answers.com/Q/If_a_person_w ... n_the_moon
-6000 = -10 (on y axis) * 600 (random units of mass in bullet simulation).
As far as I am aware 1kg = 9.81 newtons (on earth). So my gravity is slightly greater than the weight of a kg?
http://wiki.answers.com/Q/How_many_kg_is_1_Newton
So if I have 10 newtons per 1Kg trying to make kg a measurement of weight rather than mass (to not blow up my brain) I am actually holding 1.02ish kg per 10 newtons? So my cars chasis has a weight of (1.02(bullet world gravity) * 6000) /10 so the relative actual weight of the car is 612kg aproximately so 0.67 tons? I am trying to calculate all this so I can figure out what calculations that are needed to make a ray vehicle class peform a power slide. I can do a hand break turn but loose my forward inertia due to grip vs weight I think before I manage to power slide very far at all. When my car loving brother/man of physics asked me for details on the cars various friction etc/MPH/Weight and various other details I could only tell him the weight was 600... somethings! so I decided to investigate.
Why is bullet world gravity different to earth gravity?
Gravity 10 or 9.8? and weight calculations for dummies
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EnlightenedOne
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Dominik
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Re: Gravity 10 or 9.8? and weight calculations for dummies
9.8 is pretty close to 10, so its just a rounded value.
Why do you want to use 9.8? The normallly used standard value is 9.81, even more precise is the global average of 9.80665m/s^2. ANd even this varies depending on the location. So it's always just an estimate. if you want a more precise one - why not simply set your desired gravity value yourself?
Why do you want to use 9.8? The normallly used standard value is 9.81, even more precise is the global average of 9.80665m/s^2. ANd even this varies depending on the location. So it's always just an estimate. if you want a more precise one - why not simply set your desired gravity value yourself?