Thursday

August 28, 2014

August 28, 2014

Posted by **JJ** on Saturday, January 8, 2011 at 3:13pm.

(A) From what height was the object dropped?

(B) What is the velocity of the object when it hits the ground?

(C) How long does the object fall?

- Physical Science -
**bobpursley**, Saturday, January 8, 2011 at 3:56pmm*g*h=13,230

solve for h.

final energy is 1/2 mv^2= 13230 solve for v

how long?

you know the final velcocity, so the average velocity is half that.

time= h/avgvelocity

**Related Questions**

physical Science - A 1 kg object requires 10 N of force to lift it 5 m from the ...

math - The height, in feet, of a free]falling object t seconds after being ...

math - The height, in feet, of a free-falling object t seconds after being ...

math - the height, in feet, of a free-falling object t seconds after being ...

physics - An object is dropped from a height H above the ground. This free-...

physics - An object is dropped from a height H above the ground. This free-...

Physics - A 6 kg brick is falling at a rate of 48.9 m/s toward the earth at a ...

Physics - A 6 kg brick is falling at a rate of 48.9 m/s toward the earth at a ...

algebra 1 - The formula for the height of a falling object is shown below, where...

physics - An object of mass 5 kg is dropped from a certain height. Just before ...