The circular disk of mass m 120 kg and radius r 042 m is r

The circular disk of mass m = 12.0 kg and radius r = 0.42 m, is rolling through the bottom of the circular path of radius R = 1.40 m. If the disk has an angular velocity ? = 2.0 rad/s, determine the force N exerted by the path on the disk.

please use the numbers in this problem i have the general solution and it is no help

The circular disk of mass m = 12.0 kg and radius r = 0.42 m, is rolling through the bottom of the circular path of radius R = 1.40 m. If the disk has an angular velocity = 2.0 rad/s, determine the force N exerted by the path on the disk

Solution

N = m [g + r²w² / R- r]

= 12.0 [ 9.8 + ( 0.42^{2 *} 2² / 1.4 - 0.42) ]

= 12.0 [ 9.8 + 0.72 ]

= 126