Question

Calculate the velocity of the rod when its length will appear 90% of its proper length

a) 2c
b) 1c
c) 4c
d) 5c

URGENT

Answer 1

Answer:

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Answer 2

None of the options are correct velocity, then the true velocity is 0.4 c.

Explanation:

• The length of an object that is moving gets shorter when seen in a rest outline, this technique is also known as Length compression.
• Since, 90% of proper length of the rod from the given length of rod is considered.

                                          l = 0.9 $l_o$ → (1)

                                        $l_o= \frac{1}{\sqrt{(\frac{1-v^2}{c^2)}} \times l}$

                                   $\rightarrow l_o = \frac{1}{\sqrt{(\frac{1-v^2}{c^2)}} \times l} \times 0.9l_o$

Which gives us the value of v = 0.4358 c .

Therefore, the velocity of the rod is 0.4 c.

To know more:

Calculate the velocity of the rod when its length will appear 90% of its proper length

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