Homework: Vectors and 2-D Kinematics

Anonymous
timer Asked: Jan 19th, 2016

Question description

Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 19 m/s at an angle 48 degrees; with respect to the horizontal. Sarah catches the ball 1.5 meters above the ground.

1.horizontal component = 12.05 (answer)

2.vertical component = 17.2 (answer)

3. maximum height the ball goes above the ground = 16.6 (answer)

4.distance between the two girls= 42.3 (answer)

5.After catching the ball, Sarah throws it back to Julie. The ball leaves Sarah's hand a distance 1.5 meters above the ground, and is moving with a speed of 15 m/s when it reaches a maximum height of 20 m above the ground.

What is the speed of the ball when it leaves Sarah's hand?




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