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Qmechanic ♦
Qmechanic ♦
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a A relativistic fly flies at 0$0.7c7c$ in the same direction as a car traveling at 0$0.8c8c$. What will the speed of the fly be according to the driver?

a relativistic fly flies at 0.7c in the same direction as a car traveling at 0.8c. According to the driver of the car, how quickly will the fly approach the car?

A relativistic fly flies at 0.7c in the same direction as a car traveling at 0.8c. According to the driver of the car, how quickly will the fly approach the car?

To solve this problem, I applied the relativistic velocity addition formula: $$ u' = \frac{u - v}{1 - \frac{uv}{c^2}} $$

where u = 0.7c and v = 0.8c. The answer that I get is 0.23c. however, the answer in my book is 0.96c. I was wondering which answer is correct, as I think the book's answer could be wrong.

a relativistic fly flies at 0.7c in the same direction as a car traveling at 0.8c. What will the speed of the fly be according to the driver?

a relativistic fly flies at 0.7c in the same direction as a car traveling at 0.8c. According to the driver of the car, how quickly will the fly approach the car?

To solve this problem, I applied the relativistic velocity addition formula: $$ u' = \frac{u - v}{1 - \frac{uv}{c^2}} $$

where u = 0.7c and v = 0.8c. The answer that I get is 0.23c. however, the answer in my book is 0.96c. I was wondering which answer is correct, as I think the book's answer could be wrong.

A relativistic fly flies at $0.7c$ in the same direction as a car traveling at $0.8c$. What will the speed of the fly be according to the driver?

A relativistic fly flies at 0.7c in the same direction as a car traveling at 0.8c. According to the driver of the car, how quickly will the fly approach the car?

To solve this problem, I applied the relativistic velocity addition formula: $$ u' = \frac{u - v}{1 - \frac{uv}{c^2}} $$

where u = 0.7c and v = 0.8c. The answer that I get is 0.23c. however, the answer in my book is 0.96c. I was wondering which answer is correct, as I think the book's answer could be wrong.

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PM 2Ring
PM 2Ring
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Ved Rathi
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a relativistic fly flies at 0.7c in the same direction as a car traveling at 0.8c. What will the speed of the fly be according to the driver?

a relativistic fly flies at 0.7c in the same direction as a car traveling at 0.8c. According to the driver of the car, how quickly will the fly approach the car?

To solve this problem, I applied the relativistic velocity addition formula: $$ u' = \frac{u - v}{1 - \frac{uv}{c^2}} $$

where u = 0.7c and v = 0.8c. The answer that I get is 0.23c. however, the answer in my book is 0.96c. I was wondering which answer is correct, as I think the book's answer could be wrong.