Question

74. Two particle of equal masses and having opposite charges are placed 2d distance apart. Due to electrostatic force they move towards each other. When separation between them reduces to 'd' their speeds becomes u. At what separation speed of each particle is 2u. (a) d/3 (b) 2d/3 (c) d/5 (d) 2d/5

          74.
Two particle of equal masses and having opposite charges are placed 2d distance apart.
Due to electrostatic force they move towards each other. When separation between
them reduces to 'd' their speeds becomes u. At what separation speed of each particle
is 2u.
(a) d/3
(b) 2d/3
(c) d/5
(d) 2d/5

74.
Two particle of equal masses and having opposite charges are placed 2d distance apart.
Due to electrostatic force they move towards each other. When separation between
them reduces to 'd' their speeds becomes u. At what separation speed of each particle
is 2u.
(a) d/3
(b) 2d/3
(c) d/5
(d) 2d/5

Added by Wyatt O.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Rubeena Zulfiqar

02/18/2022

Step 1

Step 1: The initial potential energy of the system is given by: $$U_i = \frac{kq^2}{2d}$$ where k is Coulomb's constant and q is the magnitude of the charge on each particle. Show more…

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74. Two particle of equal masses and having opposite charges are placed 2d distance apart. Due to electrostatic force they move towards each other. When separation between them reduces to 'd' their speeds becomes u. At what separation speed of each particle is 2u. (a) d/3 (b) 2d/3 (c) d/5 (d) 2d/5