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QUESTION 2 A sphere is fired downwards into a medium with an initial speed of 45 m/sec. If it experiences a deceleration of (a

QUESTION 2 A sphere is fired downwards into a medium with an initial speed of 45 m/sec. If it experiences a deceleration of (a = -6't m/sec2), where t is in seconds. Determine the time required before it stops, in the unit of seconds.

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