maria456lol maria456lol

09-02-2017
Physics

Answered

an airplane travels down a runway for 4.0 seconds with an acceleration of 9.0m/s. what is its change in velocity during this time?

Verified Answer :

samszy2805 samszy2805

09-02-2017

a=9m/s^2, u=0, t=4 secs
by the equations of motion
a = \(\frac{v-u}{t}\)
9 = \(\frac{v}{4}\)
∴v = 36m/s

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