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Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt
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What would be the momentum of an object pushed to the

Chapter 17, Problem 28RQ

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QUESTION:

What would be the momentum of an object pushed to the speed of light?

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QUESTION:

What would be the momentum of an object pushed to the speed of light?

ANSWER:

Solution 28RQ Step 1 of 2 : Since the speed of the object is equal to speed of light, we have to solve the problem under relativistics limit. Therefore, the moment of an object under relativistic case is given by, In general, momentum is the product of mass and velocity of object, That is, P = m v Since when the object starts moving with higher speed, the mass of the object changes. That is given by m m = 0 2…………...1 1c2 Using this in above equation, m0v p = v2 1c2 Where p is the momentum, m is the0rest mass of object, v is speed of object and c is the speed of light.

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