A 4kg particle is subject to a total force that varies with position as shown in Figure below. The particle starts from rest at x = 0. What is its speed at x =5m, x =10m, and x =15m? ​

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.