Concept explainers
(a)
The speed of the charge
(a)
Answer to Problem 77GP
The speed of the charge
Explanation of Solution
Given info:
Separation is
The charge
The masses are
Formula used:
The potential energy due to charges
The kinetic energies are,
If the charge
Here, k is the Coulomb’s constant.
Calculation:
Substituting the given values,
Conclusion:
Thus, the speed of the charge
(b)
The speed of the charge
(b)
Answer to Problem 77GP
The speed of the charge
Explanation of Solution
Given info:
Separation is
The charge
The masses are
Formula used:
Initially, both point charges are released from the rest. Hence, the initial momentum of the point charges is zero.
The final momentums of the two point charges are,
In this case, both momentum and the energy of the system will be conserved. Since, the initial momentum is zero, and the magnitudes of the moments of the two charges will be equal.
From the conservation of Energy, the potential energy of the two point charges will be equal to the kinetic energy of the two point charges.
Replace
Calculation:
Substituting the given values,
Conclusion:
Thus, the speed of the charge
Chapter 17 Solutions
Physics: Principles with Applications
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