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The coordinates of a bird flying in the xy-plane are given by x(t)=αt and y(t)=3.0m−βt2, where α=2.4m/s and β=1.2m/s2.
a)Let the direction be the angle, that the vector makes with the +x-axis measured counterclockwise. Calculate the direction of the bird's velocity at t=2.0s.Express your answer in degrees using two significant figures.
b)Calculate the magnitude of the bird's acceleration at t=2.0s.Express your answer using two significant figures.

Sagot :

SayMyLastName
magnitude of accel = 2.4m/s2
angle 296.57 degrees  , sry I'm new , how do I know if I'm right or not
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