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Question 2 2 of 6 Part A Constants Find the average velocity of the dot between t 0 and t-2.0 s A web page designer creates an animation in which a dot on a computer screen has a position of r4.5 cm(2.7 cm/s2 )t2]i + (4.8 cm/s )tj Give your answer as a pair of components separated by a comma. For example, if you think the x component is 3 and the y component is 4, then you should enter 3,4. Express your answer using two significant figures 5.4,4.5 cm/s Submit Incorrect: Try Again; 4 attempts remaining Part B Find the instantaneous velocity at t-0 Give your answer as a pair of components separated by a comma. For example, if you think the x component is 3 and the y component is 4, then you should enter 3,4. Express your answer using two significant figures 4.5j cm/sPart C Find the instantaneous velocity at t 1.0 s. Give your answer as a pair of components separated by a comma. For example, if you think the x component is 3 and the y component is 4, then you should enter 3,4. Express your answer using two significant figures. cm/s SubmitR Request Answer Part D Find the instantaneous velocity at t 2.0 s Give your answer as a pair of components separated by a comma. For example, if you think the x component is 3 and the y component is 4, then you should enter 3,4. Express your answer using two significant figures. cm/s Submit Request Answer

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t A At Time 4.gu吆 , た と7x2Jy2ung Î A+ t-24 fartd)

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