Caleb is swinging Rachel in a circle with a centripetal force of 533 N. If the radius of the circle is 0.75 m and Rachel has a mass of 16.4 kg, how fast is Rachel moving? Round to the nearest tenth.

Centripetal force = 533N

radius = 0.75 m

mass = 16.4 kg

How fast is rachel moving? we are looking for v = velocity

centripetal force = (mv^2) / r

533 = ((16.4) (v^2)) /.75

cross multiply

(533) (.75) = (16.4) v^2

((533) (.75)) / 16.4 = v^2

v^2 = 24.375

take the square root

v = 4.9

Rachel is moving at 4.9 m/s