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The average acceleration is = 2.5m/s^2
EXPLANATION
GIVEN THAT
velocity v1 = 30m/s from North
velocity v2 = 40m/s from east
Time = 20 seconds
THE RESULTANT VELOCITY IS
v = √v1^2 + v2^2
v = √40^2 + 30^2
v = 50m/s
ACCELERATION = VELOCITY/TIME
a = v / t
a = 50 / 20
a = 2.5m/s^2
Hence,
the average acceleration is = 2.5m/s^2
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