Question

plz help .......will mark as brainliest

Answer 1

let the total height be H
given,
H equal to h + h is equal to 2 h
velocity equal to 14 metre per second
acceleration due to gravity is equal to 9.8 metre per second square
formula used,
v square is equal to you a square minus 2gh
solution,
substitute of given values
for total height zero square is equal to square minus 2 g h 0 is equal to a square minus 2 into 9.8 into 2 h next line 39.2 hours is equal to you a square is the first equation now for half of maximum height in the formula of a square minus you're a square is equal to two vgh where therefore b square is equal to you a square minus 2 GH 14 a square is equal to a square minus 2 into 9.8 into h or 196 + 19.68 is equal to 39.2 age substitute the value from equation 1 196 is equal to 19.6 and therefore it is equal to 10 and capital f is equal to 2 is equal to 2 into 10 is equal to 20 m is your answer.