a ball is thrown Vatican upward with a velocity of 20.0m/s.
a) what is the retardation of the ball?
b) what distance does it travel before its comes to rest movementally at the top of its motion?
c) what is the time taken for the ball to reach its highest point?
d) what is the time taken for the bell to return to the tower?
a. 9.8 m/s^2.
b. V*2 = Vo^2 + 2g*d.
V = 0, Vo = 20 m/s, g = -9.8 m/s^2, d = ?.
c. V = Vo + g*t.
V= 0, Vo = 20 m/s, g = -9.8 m/s^2, t = ?.
d. T = 2*t(part c).