Can the total acceleration of an object undergoing circular motion be greater than the centripetal acceleration? Please explain.

Which of the following is true about an object in uniform circular motion? It's velocity is constant all of the other options are false O It's radius is constant It's speed changes O It's acceleration acts outwards

1 ) A jet fighter flying at 300 m/s (just below the speed of sound) makes a turn of radius 2.75 km. (a)What is its centripetal acceleration ? (b) Suppose the pilot makes an emergency turn to avoid an approaching missile, subjecting himself to a centripetal acceleration of 10 gs ( = 10x9.8 m/s2), while flying at 580 m/ s (supersonic). What is the radius, in km, of his turn? (This must be short-lived because fighter planes can only briefly endure such large accelerations without serious damage, and the pilot will soon black out at 10 gs.)