EMM101 4. (a) Figure 4 (a) shows a 0.347 kg ball rolling on an irregular and frictionless loop. The radius of curvature at the top of the loop (T) is p = 1.4 m. i. ii. iii. iv. Determine the minimum speed of the ball required at point T such that it can stay on the loop. Determine the minimum initial velocity of the ball (Vinta) such that the ball could stay on the loop without falling. Determine the final velocity of the ball at location B if the initial velocity at A is Vinital= 10 m/s. Determine the normal force N of the loop against the ball at T if the initial velocity at A is Vinitial = 10 m/s (60 marks) Vinitial Figure 4 (a) B 3 m 1m