Question

A fishing line will break when the tension in it reaches 15 N. A
3.1 m length of it is used to tie a model aeroplane of mass 280
g to a post so it goes round in circles. What is the fastest speed
the aeroplane can reach before the line breaks.
Give your answer both as an angular velocity and in m/s

Answer 1

m * v^2 / r = 15 N

.28 kg * v^2 = 15 N * 3.1 m

Answer 2

Dima