Question

A block attached to a vertical spring has a velocity of 0.499 m/s after it descended through a distance of 5.0 cm. Initially the spring is neither compressed nor stretched. If the spring constant is 525 N/m, calculate the mass of the block. (a) 35.9 kg (b) 2.72 kg (c) 0.013 kg (d) 1.79 kg
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Answer 1

Answer:

Answer :

B

Solution :

Use the line of conservartion of energy let

be the execsion in the spring <br> Appliying conservation of energy <br>