The behavior of a real fluid under the action of a constant shear force is shown below. The upper plate moves to the right under the action of a constant

force F and the lower plate is stationary. The dotted lines indicate the location of the fluid particles at three different times. In terms of the definition of a fluid, what is the difference in the velocity of the fluid particles between time t and time t2? a) There is no difference. b) The velocity at t2 is greater than the velocity at t1. c) The velocity at t2 is less than the velocity at t1. d) There is not enough information to determine whether there is a difference or not.