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Julie throws a ball to her friend Sarah. The ball leaves Julie’s hand a distance 1.0...

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Physics

Julie throws a ball to her friend Sarah. The ball leaves Julie’shand a distance 1.0 m above the ground with an initial speed of 10m/s at an angle 30◦ with respect to the horizontal. Sarah catchesthe ball 1.0 m above the ground.

(a) What is the horizontal component of the ball’s velocityright before Sarah catches it?

(b) What is the vertical component of the ball’s velocity rightbefore Sarah catches it?

(c) What is the time the ball is in the air?

(d) What is the distance between the two girls?

(e) After catching the ball, Sarah throws it back to Julie.However, Sarah throws it too hard so it is over Julie’s head whenit reaches Julie’s horizontal position. Assume the ball leavesSarah’s hand a distance 1.0 m above the ground, reaches a maximumheight of 6 m above the ground, and takes 1.115 sec to get directlyover Julie’s head. What is the speed of the ball and the angle withthe horizontal when it leaves Sarah’s hand?

(f) How high above the ground will the ball be when it gets toJulie?

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