DP Physics (first assessment 2025)

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Question 21M.1A.SL.TZ1.6

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1A.SL.TZ1.6
Level SL Paper 1A Time zone TZ1
Command term Question number 6 Adapted from N/A
6.
[Maximum mark: 1]
21M.1A.SL.TZ1.6

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

[1]

Markscheme

B

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