A Proton Moving at 3 * 10⁴ M/s Is Projected $\degree$

question 111

Short Answer

A proton moving at 3 * 10⁴ m/s is projected at an angle of 30 $\degree$ above a horizontal plane.If an electric field of 400 N/C is directed downwards,how long does it take the proton to return to the horizontal plane? (HINT: Ignore gravity. )[m_Proton = 1.67 *10 ^{- 27} kg,q_Proton = +1.6 *10 ^{- 19} C.]

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