If the Applied Force (force exerted) on both crates with the current Friction setting is 350N, the acceleration is If the Applied Force (force exerted) on both crates with the current Friction setting is 350, the acceleration is

a. initially 1 m/s2, and then it increases as the crates' speed increases.
b. roughly 3.5 m/s2.
c. a constant 1 m/s2.