leaf falls 18ft from a branch to the ground at a rate of 5f of every 2sec determine whether each statement each of the following statement at true or false

Question

a) The initial height of the leaf is 18 feet.
b) The leaf falls at a rate of 2/5 foot every 1 second.
c) The leaf is 3 feet above the ground after 6 seconds.

Answer 1

a) True

 

    The leaf fell from 18 ft of height so initial height was 18 ft

 

b) False

 

    5ft/2s = 2.5 ft/s

    Velocity is 2.5 ft per second

2/5 = 0.4 ft/sec but the actual velocity is 2.5 ft/sec

 

c)  True

 

    The leaf falls 2.5 ft/sec for 6 seconds

    2.5(6) = 15 ft

    18 - 15 = 3 ft