B. Calculate your hang time. c. Convert vertical jump from m to inches. (1 m = 39.4 in) How does your vertical compare to averages?
d. Calculate Vi when you jumped. (in m/s) How does this compare to V, when you landed?
e. Convert Velocity from m/s to mi/hr.
3. Your conclusions. (comment on what you have learned, sources of error in your data or procedure, how one might
improve his vertical in this lab, suggestions for improvement to lab, comparison of your data to averages, etc)

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".