Let two cars have the same mass m. Suppose a car passes through a stop sign...
Let two cars have the same mass m. Suppose a car passes through a stop sign with out stopping at a speed of 5 mi/hr. Another car travels from the west at at speed of 70 mi/hr. The two cars stick together and travel off the road at some final speed v and the angle θ as measured relative to the +x−axis.
Homework Answers
Assuming first car ti travelling towards +y axis or towards north
conservation of momentum
in x direction
m*70=2*m*Vx
Vx=35 mi/hr
in y direction
m*5=2*m*Vy
Vy=2.5 mi/hr
θ=arctan(Vy/Vx)
=4.0856
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