An astronaut is in outer space and throws a ball. After she releases the ball:
Draw a free body diagram of the ball.
b. What is the net force on the ball?
c. If the ball was moving at 10 m/s right as she
a.

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f