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Use the graph below for questions 12 15 Velocity versus Time 1 2 3 4 5 6 78 9 10 Time (s) 12, what is the average acceleration of the particle from t = 2 s to t-9 s? 13. What is the instantaneous acceleration at t 5s?

G. If a projectile is launched with an initial velocity of 20 m/s from a height of 50 m in th Mehort ho ng dos it take the projectile to return to its originag th, how long direction 60 east of height? 7 Peterson traveled 5 m due west, and then another 5 m due north. From his current location, he wishes to return to his original location by traveling in a straight line. How far and in what direction should he travel? If a projectile is launched from the ground with an initial velocity 100m/s in the direction 30° north of east, what is maximum height and maximum range of the projctile?

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Approach used:- here we use the definition of average acceleration and the fact that instantaneous acceleration is the slope of the velocity time graph at any instant.12) aug at 9s-2S 7-S 1042861 mis2 し) 13 instant aneous aecelurahion is eaual to Slope of v-t t-5s slope is grat, at dt Cs- 4s 2S

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