Answer:
Reduce you're speed, and let the other vehicle pass you
The work done by the elephant to lift one log is the force multiplied by the height at which the log has been lifted:

And so, the total work done to lift the 7 logs is 7 times the work done to lift each log:
It is the heat required to raise the temperature of the unit mass of a given substance by a given amount (usually one degree).
To me "Ma" mean in real life is either mama or Massachusttes.