A spring of spring constant $$$30 \mathrm{Nm}^{-1}$$$ is suspended vertically from its top. The spring obeys Hooke's law. Initially the spring is not compressed and not stretched. A mass of 0.50 kg is attached to the bottom of the spring. The mass is released from rest and falls. Frictional effects are negligible. In the motion that follows, what is the maximum extension of the spring?

0.017 m

0.033 m

0.16 m

0.33 m

Physics

IGCSE&ALevel

CAIE

Exam No：9702_w24_qp_11 Year：2024 Question No：19

Answer:

Knowledge points:

6.1.1 appreciate that deformation is caused by a force and that, in one dimension, the deformation can be tensile or compressive

6.1.2 describe the behaviour of springs in terms of load, extension, elastic limit, Hooke’s law and the spring constant (i.e. force per unit extension)

6.1.3 define and use the terms stress, strain and the Young modulus

6.1.4 describe an experiment to determine the Young modulus of a metal in the form of a wire

Answer:

Knowledge points:

Solution:

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