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A stone falls freely from rest and the t...

A stone falls freely from rest and the total distance covered by it in last second of its motion equals the distance covered by it in the first 3s of its motion. How long the stone will remain in the air?

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To solve the problem step by step, we will use the equations of motion under constant acceleration due to gravity. ### Step 1: Understand the Problem We have a stone that falls freely from rest. The distance covered in the last second of its motion is equal to the distance covered in the first 3 seconds of its motion. We need to find the total time the stone remains in the air. ### Step 2: Distance Covered in the First 3 Seconds The distance covered by the stone in the first 3 seconds can be calculated using the second equation of motion: \[ ...
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