In the Angry Birds™ game, the green bird (also called the Boomerang Bird)
can change directions. Suppose the green bird is catapulted along the x-axis
such that its position at time t is given by x(t) = 4cos !t
2 ( ) "1 for 0 ! t ! 3
2

Question

In the Angry Birds™ game, the green bird (also called the Boomerang Bird)
can change directions. Suppose the green bird is catapulted along the x-axis
such that its position at time t is given by x(t) = 4cos !t
2 ( ) "1 for 0 ! t ! 3
2

anonymous · Answer

x(t)=4cos(pit^2)-1 for o les than or equal to t les than or equal to root 3/2

anonymous · Answer

a. Find an expression for the velocity of the bird.

anonymous · Answer

b. For what values of t is the bird moving left? Justify your answer.