A 220 kg wagon, travelling at 1,5 m.s' to the right, is passing under a chute that is dropping packaged goods into it. The total mass of the goods dropped into the wagon is 55 kg. Ignore the effects of friction. chute 55 kg goods 220 kg wagon 1,5 m s 5.1 Does the wagon's speed INCREASE or DECREASE as soon as the goods fall into the wagon? Explain your answer. (2) 5.2 5.3 Write down the principle of conservation of linear momentum in words Calculate the velocity of the fully-laden wagon after the goods have fallen into it. (2) (4) 5.4 Is the collision elastic or inelastic? Explain your answer with the use of a suitable calculation [12] 理 (4)
