Two identical cars were involved in a collision at an icy intersection. car a was stopped at a traffic light. car b was moving at a speed vwhen it suffered a perfectly inelastic collision with the back end of car a. with what speed did the two cars slide into the intersection after the collision?

Consider a file currently consisting of 200 blocks. assume that the file control block (and the index block in the case of indexed allocation) is already in memory. calculate how many disk i/o operations are required for contiguous, linked, and indexed (single-level) allocation strategies, for each of the conditions listed below. in the contiguous-allocation case, assume that there is not room to grow at the beginning but there is room to grow at the end. also assume that the block information to be added is stored in memory.