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At an air show, a jet plane has velocity components vx=685km/h and vy=425km/h at time 3.95...

At an air show, a jet plane has velocity components vx=685km/h and vy=425km/h at time 3.95 s and vx=908km/h and vy=375km/h at time 7.12 s.
a) For this time interval, find the x component of the plane's average acceleration. Express your answer in kilometers per hour per second.
b) For this time interval, find the y component of the plane's average acceleration. Express your answer in kilometers per hour per second.
c) For this time interval, find the magnitude of its average acceleration. Express your answer in kilometers per hour per second to two significant figures.
d) For this time interval, find the direction of its average acceleration. Express your answer in degrees.

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