At What Velocity Would a Proton Be Traveling If It

question 99

Multiple Choice

At what velocity would a proton be traveling if it had the same kinetic energy as an electron traveling at 10.0% of the speed of light? KE = ½ mu², where m is the mass and u is the velocity; proton mass = 1.673 *10^-27 kg; electron mass = 9.109 * 10^-31 kg; speed of light = 2.998 -10⁸ m/s.

• A)4.89 *10¹¹ m/s
• B)2.45 * 10¹¹ m/s
• C)4.95 * 10⁵ m/s
• D)7.00 * 10⁵ m/s
• E)3.50 *10⁵ m/s

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