Frame S’ moves relative to frame S at speed of 2.4 × 10 8 m/s in the direction of increasing x. An object is fired in frame S’ at a speed of 1.8 × 10 8 m/s in the direction of increasing x’. The speed of the object according to an observer in frame S is:

Correct Answer is : 2.8 × 108 m/s

AAI ATC Junior Executive 2016 Shift 2 Paper

Question : 87 of 120

Marks: +1, -0

Frame S’ moves relative to frame S at speed of 2.4 × 10⁸ m/s in the direction of increasing x. An object is fired in frame S’ at a speed of 1.8 × 10⁸ m/s in the direction of increasing x’. The speed of the object according to an observer in frame S is:

1.2 × 10⁸ m/s
2.0 × 10⁸m/s
2.8 × 10⁸ m/s
1.6 × 10⁸ m/s

Validate

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