Posted by **albert** on Monday, April 4, 2011 at 2:14pm.

how fast will a object be traveling when drppped from 30 feet high

- physics -
**tchrwill**, Tuesday, April 5, 2011 at 12:55pm
I assume that you mean what will the velocity of an object be at impact when dropped from a height of 30 feet?

Using h = Vo(t) + 32.2(t^2)/2 and assuming zero velocity when dropped,

30 = (0(t + 32.2(t^2)/2

60 = 32.2t^2

t^2 = 1.863 making t = 1.365 sec.

From Vf = Vo + 32.2t, the velocity at impact becomes Vf = 32.2(1.365) = 43.95ft./sec.

## Answer This Question

## Related Questions

- physics - a student drops an object out the window of the top floor of a high-...
- physcial science - a student drops an object out of the window of the top floor ...
- physics - a object is traveling horizontaly when it reaches a 50meter drop how ...
- physics - If an object takes 2.75 seconds to move twenty feet how fast is the ...
- physics - An object in launched directly upward at 54 feet per second (ft/s) ...
- physics - An object traveling 200 feet per second slows to 50 feet per second in...
- physics - Suppose a radar gun on first base catches a baseball 30 feet away from...
- Physics - **I JUST NEED THE STEPS ON HOW TO SOLVE THE PROBLEMS** An object ...
- Physics - How fast is an object traveling after 3seconds if its terminal ...
- algebra - A car hits an object the object goes 25 ft in the air and lands 300 ft...

More Related Questions