A certain freely falling object, released from rest, requires 1.80 s to travel t

Question

A certain freely falling object, released from rest, requires 1.80 s to travel the lest 26.0 m before it hits the ground can be de (a) Find the velocity of the object when it is 26,.0 m above the ground. (Indicate the direction with the sign of your answer. Let the positive direction be upward.) Your response differs from the correct answer by more than 10%. Double check youraalations. m/s (b) Find the total distance the object travels during the fall from rest, to a umers from the correct answer by more than 10%. Double check your calculations. m Need Help?oser Subenit ArwrSave ProgressPracics Another Version

Explanation / Answer

a )

using equation

s = dy t + 1/2 a t2

dy = (s - 1/2 a t2) / t

dy = ( - 26 - 0.5 X (-9.8) X 1.82 ) / 1.8

dy = - 5.6244 m/sec

b )

using

dy2 - u2 = 2 a s

s = (-5.6244)2 - 0 / 2 X 9.8

s = 1.614 m

the total ditance h = s + 26

h = 1.614 + 26

h = 27.614 m

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