Problem 1

Description

A red ball slides off a table as shown in the animation (position is in meters and time is in seconds). Ignore air friction. The ball hits the other table after moving a distance x. (Remember to click and drag to find x and y.)
  Start
(Hint: Review Ch. 3  and Ch. 10 ) 
Question 1
What is Vx just before the collision ? 
Question 2
What is Vy just before the collision ? ALSO COMPUTE Vy using the formula   Vy = 2*change in y/time
Question 3
What is the speed just before the collision? 
Question 4
What the is the angle that the velocity vector makes with the horizontal just before the collision?
QUESTION 5: WHAT IS THE NET FORCE ON THE BALL WHILE IT ROLLS ON THE TABLE? EXPLAIN BY TALKING ABOUT THE DIFFERENT POSSIBLE OR ACTUAL FORCES IN THE VERTICAL AND HORIZONTAL DIRECTIONS AND HOW THEY MIGHT ADD ADD UP TO EXPLAIN YOUR ANSWER.  


Reference
See  Ch. 3 and Ch. 10