when at the top, vertical velocity is zero
vf=0=vi+gt solve for t, time to top.
How long it will take to get to the ground?
Hf=Hi+vi*t-1/2 g t^2 hi=20, hf=0, solve for t to get time in the air.
a girl throws a ball vertically upwards at 5m/s from the roof of a building 20m high
how long will it take the ball to reach the ground? and what will its speed be when it strikes the ground
2 answers
T=1.2
2 answers