Physics 101 Introduction to Mechanics 

January 25 Velocity & Acceleration  



You are writing a short adventure story for your English class. In your
story, two submarines on a secret mission need to arrive at a place in
the middle of the Atlantic Ocean at the same time. They start out at the
same time from positions equally distant from the rendezvous point. They
travel at different velocities but both go in a straight line. The first
submarine travels at an average velocity of 20 km/hr for the first 500
km, 40 km/hr for the next 500 km, 30 km/hr for the next 500 km and 50 km/hr
for the final 500 km. In the plot, the second submarine is required to
travel at a constant velocity, so the captain needs to determine the magnitude
of that velocity.


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