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Question 18M.3.SL.TZ2.a

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.3.SL.TZ2.a
Level SL Paper 3 Time zone TZ2
Command term Calculate Question number a Adapted from N/A
a.
[Maximum mark: 1]
18M.3.SL.TZ2.a

When a spaceship passes the Earth, an observer on the Earth and an observer on the spaceship both start clocks. The initial time on both clocks is 12 midnight. The spaceship is travelling at a constant velocity with γ = 1.25. A space station is stationary relative to the Earth and carries clocks that also read Earth time.

Calculate the velocity of the spaceship relative to the Earth.

[1]

Markscheme

0.60c

OR

1.8 × 108 «m s–1»

 

[1 mark]

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