A particle of mass 5 kg is undergoing one-dimensional motion. It is subject to a constant force of 25 N, and has an initial speed of 3 m/s. The force is parallel to the initial velocity, both of which are directed in the positive direction along the axis of motion
(a) what is the change in velocity △v, in meters per second, of the particle between t = 0 and t = 2 s?
(b) What is the displacement △r, in meters, o ,i m, of the particle betwemt-0 and-2 t = 2 s?

Imagine an isolated positive point charge q (many times larger than the charge on a single proton). there is a charged particle a (whose charge is much smaller than charge q) at a distance from the point charge q. on which of the following quantities does the magnitude of the electric field created by charge q at particle a's position depend? check all that apply. the type of the charge on the charged particle athe relative orientation between q and a (while the distance between q and a is fixed)the specific location of the charged particle a (while the distance between q and a is fixed)the amount of the charge on the point charge qthe specific location of the point charge q (while the distance between q and a is fixed)the distance between the point charge q and the charged particle athe amount of the charge on the charged particle a