anwar is outside the building of Texas Center for Superconductivity at the Uriversity of Houston (TeSUH) and Erik is on the second floor of TcSUH. Erik starts his timer as soon as Anwar throws a baseball vertically to the air. From Erik's records, the baseball firstly reaches the height of the second floor at t D 3.37 s and then passes the same height during falling at t= 8.38 s. If we ignore the air resistance during the whole process, what is the time that the baseball reaches the maximum height? (g = 9.8 m/s2) (q746) a) 06.88 s b) ONeed to know the initicail velocity c) 05.88 s d) ONeed to know the maximum height

Please answer b and c

PROBLEM: A ball with mass 0.15 kg is thrown upward with initial velocity velocity 20 m/s from the roof of a building 30 m high. Neglect air resistance.   Assume that the conditions are the same as the above except that there is a force due to air resistance of magnitude |v| / 30  directed opposite to the velocity, where the velocity v is measured in m/s. a. Find the maximum height above the ground that the ball reaches. b. Find the time that the ball hits the ground.  c. Plot the graphs of velocity and position versus time.  *** If possible, please solve for part b using the graphing calculator?  Thank you.

Calvin throws a ball straight down from the balcony of an apartment building at a velocity of 5.04 m/s.  What is the absolute value of the velocity (in m/s) after 1.108 s have passed