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Chapter 36: Q. 2 (page 1058)

Teenagers Sam and Tom are playing chicken in their rockets. As FIGURE Q36.2 shows, an experimenter on earth sees that each is traveling at 0.95cas he approaches the other. Sam fires a laser beam toward Tom.

a. What is the speed of the laser beam relative to Sam?

b. What is the speed of the laser beam relative to Tom?

Short Answer

Expert verified

a. Speed of light c

b. Speed of light c

Step by step solution

01

Part (a) Step 1: Given information

We have given,

Speed of rockets =0.95c

We have to find the speed of laser with respect to Sam.

02

Simplify

Since the speed of light will always be constant in inertial frame.

So, the laser speed for Sam will be same as speed of light.

03

Part (b) Step 1: Given information

We have given,

the speed of rockets =0.95c

We have to find the speed of laser light with respect to Tom.

04

Simplify

Since the speed of light will always be constant in inertial frame.

So, the laser speed for Tom will be same as speed of light

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