QUESTION

Which change represents the greatest acceleration?

THERE ARE MANY CHOICES:

A. From 0 to 20m/s in 2 s

A. From 0 to 20m/s in 2 sC. From 2 m/s to 8 m/s in 3 s

A. From 0 to 20m/s in 2 sC. From 2 m/s to 8 m/s in 3 sB. From 10 m/s to 5 m/s in 5 s

D. From 10 m/s to 20 m/s in 5 s

ANSWER

C. from 2 m/s to 5 m/s in 0.5 s

EXAMPLES

Given: vi = 2 m/s

Given: vi = 2 m/svf = 12 m/s

Given: vi = 2 m/svf = 12 m/st = 5 s

Given: vi = 2 m/svf = 12 m/st = 5 sSolution: a = vf - vi

Given: vi = 2 m/svf = 12 m/st = 5 sSolution: a = vf - vit

Given: vi = 2 m/svf = 12 m/st = 5 sSolution: a = vf - vit= 12 m/s - 2

Given: vi = 2 m/svf = 12 m/st = 5 sSolution: a = vf - vit= 12 m/s - 2m/s

Given: vi = 2 m/svf = 12 m/st = 5 sSolution: a = vf - vit= 12 m/s - 2m/s5 s

Given: vi = 2 m/svf = 12 m/st = 5 sSolution: a = vf - vit= 12 m/s - 2m/s5 s= 10 m/s

Given: vi = 2 m/svf = 12 m/st = 5 sSolution: a = vf - vit= 12 m/s - 2m/s5 s= 10 m/s5 s

Given: vi = 2 m/svf = 12 m/st = 5 sSolution: a = vf - vit= 12 m/s - 2m/s5 s= 10 m/s5 sa = 2 m /s²

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