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part a. What are the ball\'s average velocity during the first 2.6 s? part b. Wh

ID: 2206624 • Letter: P

Question

part a. What are the ball's average velocity during the first 2.6 s? part b. What are the ball's average speed during the first 2.6 s? part c. Suppose that the ball moved in such a way that the graph segment after 2.0 s was -3.0 m/s instead of +3.0m/s. Find the ball's and average velocity during the first 2.6 s in this case. part d. Suppose that the ball moved in such a way that the graph segment after 2.0 s was -3.0 m/s instead of +3.0 m/s. Find the ball's average speed during the first 2.6 s in this case.

Explanation / Answer

a)avg vel =total displacement /total time =(2*2+3*0.6)/2.6 =2.231 m/s b)avg speed =avg velocity =2.231 (as Vx is linear and not negative) c)avg velocity =(2*2 -3*0.6)/2.6 =0.846 m/s d)avg speed =total distance/total time =(2*2 +3*0.6)/2.6 =2.231