A spring whose spring constant is "W N/m vertically supports a mass of 1.0 kg in the rest position. Find the distance by which the mass must be pulled down so that, on being released, it may pass the mean position with a velocity of "x" m/s.
Where w = your registration number (e.g., if your registration number is 2020-ME-133, then w = 133 N/m) and x is the percentage of marks you obtained in the intermediate level (e.g., if you got 74.5% marks in intermediate, then x = 74.5 m/s).