DP Physics (last assessment 2024)

Test builder »

Question 17N.3.SL.TZ0.b

Select a Test
Date November 2017 Marks available [Maximum mark: 2] Reference code 17N.3.SL.TZ0.b
Level SL Paper 3 Time zone TZ0
Command term Calculate Question number b Adapted from N/A
b.
[Maximum mark: 2]
17N.3.SL.TZ0.b

Two rockets, A and B, are moving towards each other on the same path. From the frame of reference of the Earth, an observer measures the speed of A to be 0.6c and the speed of B to be 0.4c. According to the observer on Earth, the distance between A and B is 6.0 x 108 m.

Calculate, according to the observer on Earth, the time taken for A and B to meet.

[2]

Markscheme

closing speed = c

2 «s»

Syllabus sections