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bernvall
bernvall is offline
#3
Dec11-11, 09:04 AM
P: 19
Yes, i realised that i needed to use Newtons 2nd Law.

What i did was split it up in two, from 0 to V and then from V to 2V. the first part i managed to find the time and distance easily using equations of motion. However for the second part i didn't know what the resultant force was. It gives you the power at 2V NOT the resultant, so i got stuck again.