An Australian emu is running due north in a straight line at a speed of 13.0 m/s

Question

An Australian emu is running due north in a straight line at a speed of 13.0 m/s and slows down to a speed of 9.30 m/s in 2.40 s. a.) what is the magnitude and direction of the bird's acceleration? (-1.54 m/s^2 which I already found) b.) assuming that the acceleration remains the same, what is the bird's velocity after an additional 2.90 s has elapsed? I tried the answer 8.534 m/s and it said it was wrong. Thank you An Australian emu is running due north in a straight line at a speed of 13.0 m/s and slows down to a speed of 9.30 m/s in 2.40 s. a.) what is the magnitude and direction of the bird's acceleration? (-1.54 m/s^2 which I already found) b.) assuming that the acceleration remains the same, what is the bird's velocity after an additional 2.90 s has elapsed? I tried the answer 8.534 m/s and it said it was wrong. Thank you a.) what is the magnitude and direction of the bird's acceleration? (-1.54 m/s^2 which I already found) b.) assuming that the acceleration remains the same, what is the bird's velocity after an additional 2.90 s has elapsed? I tried the answer 8.534 m/s and it said it was wrong. Thank you

Explanation / Answer

v = u + at

here u = 9.30 m/s

a = -1.54 m/s^2

t = 2.90

v = 9.30 - 1.54*2.90

v = 4.834 m/s

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