- #1
bernvall
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Homework Statement
The resultant force acting on a train of mass m starting from rest on a level track is a constant P for speeds less than V . For speeds greater than V the power exerted by the resultant force has a constant value PV . Find the time taken to reach a speed 2V from rest, and the corresponding distance travelled.
Homework Equations
Force= power * velocity
Power= dw/dt
The Attempt at a Solution
for some reason, i don't know how to go about doing it.