2. A web page designer creates an animation in which a dot on a computer screen has a position of 7 = [4.0 cm + (2.5) t ] i+(5.0) e). (a) Find the magnitude and direction of the dot's average velocity between 1 = 0 and /= 2.0 s. (b) Find the magnitude and direction of the instantaneous velocity at / = 0, 1 1.0 s, and 1= 2.0 s. (c) Find the magnitude and direction of the instantaneous acceleration at 1 = 0, 1 = 1.0 s, and 1= 2.0 s.

2. A web page designer creates an animation in which a dot on a computer screen has a position of 7 = [4.0 cm + (2.5) t ] i+(5.0) e). (a) Find the magnitude and direction of the dot's average velocity between 1 = 0 and /= 2.0 s. (b) Find the magnitude and direction of the instantaneous velocity at / = 0, 1 1.0 s, and 1= 2.0 s. (c) Find the magnitude and direction of the instantaneous acceleration at 1 = 0, 1 = 1.0 s, and 1= 2.0 s.