Physics HW- falling Bodies, Part 2

[Medgirl314]

Homework Statement

A brick is accidentally dropped from a window of a tall building and falls 160 m to the ground. How long does it take the brick to reach the ground?

2. Homework Equations [/b
y=y initial+v inital +1/2 (αt^2)

The Attempt at a Solution

y=0+0+9.8 m/s^2(t)
y=1/2(9.8 m/s^2)t
t^2 =2y/a
t=√2(160 m)/9.8 m/s^2
= √32.65 s
t=5.72 s

Is t=5.72 s the right answer?

Thank you!

 

[Doc Al]

You got it. :thumbs:

 

[Medgirl314]

Thank you!

 

[Medgirl314]

Could you possibbly look at my part 3 problem when you have a moment? Another user and I are waiting for someone to clarify. Thank you!

 

[Doc Al]

Could you possibbly look at my part 3 problem when you have a moment? Another user and I are waiting for someone to clarify. Thank you!

See my response.