Homework: Vectors and 2-D Kinematics

timer Asked: Sep 2nd, 2015

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.What is the vertical component of the ball’s velocity right before Sarah catches it?

2. What is the time the ball is in the air?

3. After catching the ball, Sarah throws it back to Julie. However, Sarah throws it too hard so it is over Julie's head when it reaches Julie's horizontal position. Assume the ball leaves Sarah's hand a distance 1.5 meters above the ground, reaches a maximum height of 14 m above the ground, and takes 2.44 s to get directly over Julie's head.

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

4.How high above the ground will the ball be when it gets to Julie?

5. How high above the ground will the ball be when it gets to Julie?

This question has not been answered.

Create a free account to get help with this and any other question!

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors