Suppose there is a small pond near your home. A measuring stick is mounted at th

Question

Suppose there is a small pond near your home. A measuring stick is mounted at the end of a pier in order to measure the height of the water. Suppose the height of the water is 100 cm. You are earning a large boulder as you step into a small boat tied to the pier. As you step into the boat the water's height rises to 105 cm. Without making waves you paddle out to the middle of the pond. While floating there you decide to slowly drop the boulder into the .water. Initially there are some ripples on the surface of the water, but after a few minutes the water is calm. What is the height of the water now? (a) Unchanged, (b) greater than 105 cm. (c) less than 105 cm but greater than 100 cm. or (d) less than 100 cm. Explain

Explanation / Answer

Here Volume displaced by Boulder is more when they are placed in the boat

while when they are thrown in the water the volume displaced is relatively less

so finally the level of water will be less than 105 but greater than 100

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