50 points if answered all the questions with shown work. need urgent cause i have a final on this. do not comment if u don't know the answer if you do you will be reported.
1.) our principal drops a tennis ball of the golden gate bridge. if it takes the ball 3.87 seconds to hit the water, how fast is it traveling (vertically) when it does hit the water and how far did it drop?
2.) steven tosses a 4.95 kg package with a velocity of 2.3m/s at mary, who is sitting on frictionless surface. mary with a mass of 38.6 kg catches and holds on the the package. what is her velocity after catching the package?
3.) jennifer pitched a 0.23 kg baseball horizontally at +10.0m/s. sam hits it with a bat and the ball rockets straight back at jennifer with a speed of 20.0 m/s.
a. what impulse did the bat impart on the ball?
b. what is the change is the balls momentum?
c. what is the change in the bats momentum?
d. what impulse did the ball impart on the bat?
e. if the time of impact is 0.050s, what force did the bat impart on the ball?