Assume air resistance is negligible unless otherwise stated. Calculate the displacement and velocity (in m and m/s, respectively) at the following times for a ball thrown straight up with an initial velocity of 16.9 m/s. Take the point of release to be
y0 = 0.

Ball bearings are made by letting spherical drops of molten metal fall inside a talll tower-called a shot tower- and solidify as they fall. a-if a bearing needs 4.0 s to solidify enough for impact, how high must the tower be? b- what is the bearing's impact velocity?