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Date May 2021 Marks available 1 Reference code 21M.1.HL.TZ1.6
Level Higher level Paper Paper 1 Time zone 1
Command term Question number 6 Adapted from N/A

Question

Masses X and Y rest on a smooth horizontal surface and are connected by a massless spring. The mass of X is 3.0 kg and the mass of Y is 6.0 kg. The masses are pushed toward each other until the elastic potential energy stored in the spring is 1.0 J.

The masses are released. What is the maximum speed reached by mass Y?

A. 0.11 m s−1

B. 0.33 m s−1

C. 0.45 m s−1

D. 0.66 m s−1

Markscheme

B

Examiners report

[N/A]

Syllabus sections

Core » Topic 2: Mechanics » 2.3 – Work, energy, and power
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