Question

average and instaneous velocity

A web page designer creates an animation in which a dot on a computer screen has a position R=[4.0cm + (2.4cm/s^2)t^2(i)] + (5.5cm/s)t(j)
a)Find the average velocity of the dot between t=0 and t=2.
b)Find the instantaneous velocity at t=0 s.
c)Find the instantaneous velocity at t=1.0 s.
d)Find the instantaneous velocity at t=2.0 s.

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