Homework Help: physics

Posted by James on Sunday, November 25, 2012 at 7:35pm.

A model airplane of mass 1.5 kg is attached
to a horizontal string and ﬂies in a horizontal
circle of radius 5.8 m, making 2 revolutions
every 8 s. (The weight of the plane is balanced
by the upward “lift” force of the air on the
wings of the plane.)
The accelaration due to the gravity is 9.81
m/s
2
.
Find the speed of the plane.

physics - bobpursley, Sunday, November 25, 2012 at 7:50pm
speed=distance/time=2PI*5.8/4sec m/s

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