Suppose the magnitude of the charge is 2 microcoloumbs and that the speed of the

Question

Suppose the magnitude of the charge is 2 microcoloumbs and that the speed of the particle is 40 m/s as it passes point X. Suppose that a second particle with the same mass as the first but NINE times the CHARGE were released from rest at point W. Would the speed of the second particle as it passes point X be greater than, less than, or equal to the speed of the first particle (with charge of 2 microcoulombs) as it passes point X? Why?

The four points shown here are near a positively charged rod (shaded circle). Points W and Y are equidistant from the rod, as are points X and Z. A charged particle with mass 3.0 x 10^-8 kg is released from rest at point W and later observed to pass point X. Suppose the magnitude of the charge is 2 microcoloumbs and that the speed of the particle is 40 m/s as it passes point X. Suppose that a second particle with the same mass as the first but NINE times the CHARGE were released from rest at point W. Would the speed of the second particle as it passes point X be greater than, less than, or equal to the speed of the first particle (with charge of 2 microcoulombs) as it passes point X? Why?

Explanation / Answer

As the charge of the second particle is 9 times that of the first the magnitude of electrostatic force experienced is also 9 times to that of the first. But their masses are same and hence the acceleration of the second particle is 9 times that of the first. As the acceleration of the second particle is more its speed is also more

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