Question

A model aeroplane is of mass 400 g flies in a circle of radius 5 m attached to a horizontal
string the plane makes one revolution in every 4 s. Find the centripetal force on the aeroplane
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Answer 1

Answer:

4.93 N

Explanation:

Force = mv^2 /r = m(rw)^2 /r

= mrw^2

= 0.4*5*(2π/4)^2

= 2*(π^2)/4

= (0.5)(3.14)^2

= (9.8596)(0.5)

= 4.93 N

So, required centrifugal force = 4.93 N