Question

You have two people, one of whom is standing at the bottom of a building and another who is standing at the top. The person at the bottom of the building throws a ball vertically upward at 40.0 m/s at the same instant the person at the top releases an identical ball from rest. If the vertical distance between release points is 1.00 x 102 m how far from the top of the building do the two balls meet? Ignore air resistance.a.

Will you need one or two sets of equations for this problem? (1 point)

b. What equation of hidden information can you get from the idea that the release points are 1.00 x 102 m apart and the balls meet? (2 points) (think distances)

c. What second equation of hidden information do you get from the words “at the same instant” and “meet”? (1 point) (think times)

d. What piece of hidden information do you get from the phrase “released from rest”? (1 point)

e. Draw a diagram of the problem with the relevant variables labeled: (2 points)

f. List all your equations here. Be very careful that you have the signs of variables correct; you’ll have to decide if up is positive or negative and make everything else consistent with that. Highlight what you have by circling and what you want by inscribing in a square: (6 points)

g. Solve the problem. (3 points)

Answer 1