A particle of charge Q is fixed at the origin of an xy coordinate system. At t = 0 a particle (m = 0.959 g, q = 5.84 µC is locat
ed on the x axis at x = 20.7 cm, moving with a speed of 47.9 m/s in the positive ydirection. For what value of Q will the moving particle execute circular motion? (Neglect the gravitational force on the particle.)
Here we can see there is no external force acted on a two masses when we consider the motion. If there is no external forces then momentum is conserved.
We can assume or conclude that he must have made an error in his experiment. This is because, that kind of speed has been tagged to be impossible by a number of previous experiments. Cosmic rays are high energy protons and atomic nuclei that moves through space at a speed just close to light. They can come from the sun, distant galaxies and even outside if our solar system.