Soldato
- Joined
- 10 Apr 2004
- Posts
- 13,489
Now, a team of around 4 people have lifted 4298 kg 4.5 meters into a cargo hold.
Joules = weight x distance moved
4298x10=42980 Newtons
42980x4.5=193410 Joules or 193.41kJ.
Over 4 people thats 48.3525kJ each. This is all rough
Now, a slice of bread is ruffly 500kJ, so we cant have used 10% of a slice of bread each to lift 1 ton each.
Even if we are 10% efficient, thats still a slice of bread to life 1 ton. Unless we are less than 1% efficient, that doesn't seem right to me
So, what am I doing wrong
Joules = weight x distance moved
4298x10=42980 Newtons
42980x4.5=193410 Joules or 193.41kJ.
Over 4 people thats 48.3525kJ each. This is all rough
Now, a slice of bread is ruffly 500kJ, so we cant have used 10% of a slice of bread each to lift 1 ton each.
Even if we are 10% efficient, thats still a slice of bread to life 1 ton. Unless we are less than 1% efficient, that doesn't seem right to me
So, what am I doing wrong