Chapter 38A -- Relativity
Chapter 38A -- Relativity
Chapter 38A -- Relativity
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Example 3: The rest mass of an electron is<br />
9.1 x 10 -31<br />
kg. . What is the relativistic mass if<br />
its velocity is 0.8c ?<br />
m<br />
<br />
m<br />
0<br />
1<br />
v<br />
c<br />
2 2<br />
- 0.8c<br />
m o = 9.1 x 10 -31<br />
kg<br />
m<br />
<br />
-31 -31<br />
9.1 x 10 kg 9.1 x 10 kg<br />
1 (0.6 c)<br />
c<br />
2 2<br />
<br />
0.36<br />
m = 15.2 x 10 -31 kg<br />
The mass has<br />
increased by 67% !
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