Answered

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HELP PLS MARKING BRANLIST 100 pts TAKING TEST RN

An airplane went from 120 m/s to 180 m/s in 4.0 seconds. What was its acceleration?

45 m/s2

15 m/s2

60 m/s2


30 m/s2

Sagot :

CandyBby

Answer:

15 m/s^2 The first thing to calculate is the difference between the final and initial velocities. So 180 m/s - 120 m/s = 60 m/s So the plane changed velocity by a total of 60 m/s. Now divide that change in velocity by the amount of time taken to cause that change in velocity, giving 60 m/s / 4.0 s = 15.0 m/s^2 Since you only have 2 significaant figures, round the result to 2 significant figures giving 15 m/s^2

Explanation:

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