mg = Tsinα
T=mg/sinα=0.875•9.8/sin10.5 =0.817 N
mv²/R = Tcosα
v=sqrt{TRcosα/m} =
=sqrt{0.817•3.46cos10.5/0.875} = 1.78 m/s
A model airplane whose mass is 875 grams flies in a horizontal circle of radius 3.46 m at the end of a string which is at an angle of 10.5o below the horizontal. Find:
a) The tension in the string.
b) The speed of the airplane.
I have answers but I am stuck on the process like what to use.
1 answer
1 answer