The ball is moving at 2.0m/s just 40cm before it hits the table edge. If the ball has a mass of 51.3 grams and experiences a 0.23 N frictional force between it and the table, how fast will it be moving when it reaches the table's edge?
The table is 0.92m tall. How long will it take the ball to hit the ground?
The Attempt at a Solution
I used FNET=ma to solve for the acceleration and got -4.48m/s2. Then I used X=Xo+Vot+(0.5)at2 and the quadratic formula to solve for t and got 0.3 sec. I then plugged this into V=Vo+at to get a velocity of 0.656m/s. Is this correct?
For the second question: How long will it take for the ball to hit the ground?
I seemed to be stumped. Maybe my velocity I solved for is incorrect or I'm not even setting it up right?
Thanks in advance for any help.