Posted by **Melissa** on Wednesday, June 13, 2012 at 4:00pm.

An object falls from the top of the school, which is 6.06m high. Assume air resistance can be ignored and the acceleration is 9.8m/s^2

If the object was dropped( not thrown) , what is its speed after 0.333s

How long does it take to hit the ground

- physics -
**Steve**, Wednesday, June 13, 2012 at 4:30pm
v = at = -9.8(.333) = -3.26

s = 6.06 - 4.9t^2

when it hits, s=0, so

0 = 6.06 - 4.9t^2

t = 1.11

- physics -
**drwls**, Wednesday, June 13, 2012 at 4:30pm
The speed at t = 0.333 s is

V = (g/2) t^2

It hits the ground when (g/2) t^2 = 6.06 m

Solve for that new t.

## Answer this Question

## Related Questions

- physics - An object is thrown upwards and after 2 seconds is 78 m above where it...
- physics - You are told that the linear "drag coefficient" due to air resistance ...
- calculus help check and help - if an object with mass m is dropped from rest, ...
- PHYSICS - An object is thrown straight upwards from the ground at 28 m/s. Due to...
- physics - 4. An object is being lifted to the top of building by a light ...
- physics - An object was dropped from the top a tall building. During the last ...
- physics - A 2.7 kg object falls from a tower. It experiences 2.3 N of air ...
- calculus 2 - An object thrown in the air on a planet in a distant galaxy is at ...
- physics - 98. On which of these hills does the ball roll down with increasing ...
- physics - a student drops an object out the window of the top floor of a high-...

More Related Questions