Quote:
Originally Posted by Bernie Wolfard
The amount of power it takes to move mass goes up by the square of the mass.
Bernie
Supervisor, Product Support
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You sure? In physics classes they teach us that kinetic energy (KE) is equal to the mass (m) times the square of
velocity (v). You can set KE equal to work (W), and power (P) equals W/time (t). So, P = (mv^2)/(2t). That means that in terms of theoretical power requirements (not accounting for friction), an 8lb truck will use only twice as much energy at the same speed and over the same time interval as a 4lb truck. Power required for acceleration is a different thing, obviously.
SH Z-Car, Custom Crawler, 8s Savage,
12s XTM XLB 1/7 buggy,
4wd 4-link rear/IFS Pro4 truck,
Custom Hyper 10 Short Course,
Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz
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