model train accelerates the train fum rest to 0.620 Im/'s in 21.Omis. The total mass of us train 1 8750. Find the average power delivered to the train during its soceleration. 81.0ma tinoo a 3759 = 1060-0-4 CHAPTERS 7 8 8 1 rev = 2xrad T : Larl sina 40 - 0 - ta()' 6-6.67::10 Nm 10. A dentist's drill starts from rest. After 1.10 s of ancient angular acceleration it turns at a late of3.on * 10' rav/min. (a) Find the drill's angular acceleration. 26 4 (D) Determine the angle (in radians) through which the drill rotates during this period 2= 6010.52 red