Question

1.) jet plane traveling 1800 km/h (500 m/s) pulls out of a dive by moving in an arc of radius 6.00 km. What is the plane's acceleration in g's?


6.) A child on a merry -go-round is moving with a speed of 1.35 m/s when 1.20 m from the center of the merry-go-round.
a.) calculate centripetal acceleration of the child
b.) the net horizontal force exerted on the child (mass= 25.0 kg).

Answer 1

1) a = v^2/r
6) same as 1), F = ma

Answer 2

500^2 m/s /6000m = 41.67 this is acceleration
g= 9.8m/s^2
41.67m/s^2 / 9.8m/s^2 = 4.25 g