A particle of mass m and charge q is thrown at a speed u against a uniform electric field E. How much distance will it travel before coming to momentary rest?A. `(2m u^(2))/(qE)`B. `(m u^(2))/(qE)`C. `(m u^(2))/(2qE)`D. `(m u^(2))/(2 qE)`

A particle of mass m and charge q is thrown at a speed u against a uni

1.	A particle of mass m and charge q is thrown at a speed u against a uniform electric field E. How much distance will it travel before coming to momentary rest?A. `(2m u^(2))/(qE)`B. `(m u^(2))/(qE)`C. `(m u^(2))/(2qE)`D. `(m u^(2))/(2 qE)`
Answer» Correct Answer - 4 Retardation `a = (qE)/(m)` `v^(2) = u^(2) - 2as` `0 = u^(2) - (2qE)/(m) s` `s = (mu^(2))/(2 qE)`

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A particle of mass m and charge q is thrown at a speed u against a uniform electric field E. How much distance will it travel before coming to momentary rest?A. `(2m u^(2))/(qE)`B. `(m u^(2))/(qE)`C. `(m u^(2))/(2qE)`D. `(m u^(2))/(2 qE)`

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