Question

Arianna kicks a soccer ball off the ground and into the air with an initial velocity of 42 feet per second. Assume the starting height of the ball is 0 feet. Approximately, how long does it take until the soccer ball hits the ground again?

Answer 1

assuming that ball travels vertically upwards we can use equations of constants acceo
acceleration

u = 42, g = acceleration due to gravity = 32, s = displacement = 0
s = ut - 0.5gt^2
0 = 42t - 16t^2
t(42-16t) = 0
t = 0 or 42/16 = 2.625 seconds

approximately 2.6 seconds

Answer 2

thank you so much

Answer 3

ok