E q? 20% Part (a) What is the instantaneous acceleration at time 1 7.5 s? a=-8 a=-8 I/Cormct! E 45> 20% Part (b) What is the change in velocity during the time interval from 4.25 s to 6.5 5? Av = 10.75 I, Correct! c; a 20% Part (c) What is the change in velocity during the time interval from 65 s to 1 7 .5 s? mimi mm Hinls: 2% deduction per hint. Hints remaining: 1 Feedback: 2% deduction per feedback. E h 20% Part ((1) If the initial velocity is -13 m/s, then what is the velocity at time 19.25 s? E a 20% Part (e) What is the average acceleration during the time interval from 6.5 s to 25.75 s