A 400 Kg Mass Is Moving in a Circular Path with with a Constant

Multiple Choice

A 4.00 kg mass is moving in a circular path with a constant angular speed of 5.00 rad/sec and with a linear speed of 5.00 m/sec. The magnitude of the radial force on the mass is

A) 90.0 N.
B) 100 N.
C) 125 N.
D) 169 N.
E) 200 N.