The Great Fall
A parachutist falls vertically at a constant velocity of 6.5m/s. At a certain height, the wind starts to blow and he moves horizontally at a velocity of 4.5 m/s as he continues to fall. Use a graphical method to add together the horizontal and the vertical velocities to determine the size of the resultant velocity.
The answer is 8.
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1 solution
just do phytagoras with those two velocities
v=\sqrt { { 6.5 }^{ 2 }+{ 4.5 }^{ 2 } }
v=8