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3. A valve 5.5 metres up a wall starts dripping at a rate of four drops per second. Just before the first drop strikes the ground, (a) how many drops

are in the air? (b) At this point what is the distance between the first drop and the second drop? (c) What is the distance between the drop nearest the valve and the one that dropped just prior to that one? (d) What is the velocity of the first drop just before it strikes the ground? Draw a diagram. List the known variables. List any assumptions.

Fig: 1