Indigo the dog has escaped. She trots north at 5m/s. She looks behind to see Miss Leuthauser chasing after her and then she starts running at 15m/s. She changed her velocity in 2 seconds. What is her acceleration?

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Answer:5 m/s²

Explanation:From the questio,

Acceleration (a) = Change in velocity(Δv)/time(t)

a = Δv/t

a = (v-u)/t……………… Equation 1

Where v = final velocity, u = initial velocity, t = time

Given: v = 15 m/s, u = 5 m/s, t = 2 seconds

substitute these value into equation 1

a = (15-5)/2

a = 10/2

a = 5 m/s².

Hence her accleration is 5 m/s²