Kinematics in 2 dimensions

Kinematics in 2 dimensions - Assignments 9:11 PM 4...

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12/5/10 9:11 PM Assignments Page 1 of 4 4. Kinematics in 2 dimensions. Part II Due: 11:59pm on Friday, October 1, 2010 Note: To understand how points are awarded, read your instructor's Grading Policy . [ Switch to Standard Assignment View] Problem 4.82 A rubber ball is dropped onto a ramp that is tilted at 20 , as shown in the figure . A bouncing ball obeys the "law of reflection," which says that the ball leaves the surface at the same angle it approached the surface. The ball's next bounce is 3.0 to the right of its first bounce. Part A What is the ball's rebound speed on its first bounce? Express your answer using two significant figures. ANSWER: = 4.8 Correct Problem 4.80 You are watching an archery tournament when you start wondering how fast an arrow is shot from the bow. Remembering your physics, you ask one of the archers to shoot an arrow parallel to the ground. You find the arrow stuck in the ground 50.0 away, making a 3.00 angle with the ground.
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