Thursday

November 27, 2014

November 27, 2014

Posted by **Fabian** on Sunday, February 14, 2010 at 1:51pm.

The acceleration of gravity is 9.8 m/s2. At what height above the ground will the two objects pass each other?

Answer in units of m.

- physics -
**bobpursley**, Sunday, February 14, 2010 at 4:31pmThe height of each is

h1=78+(-5)t-4.9t^2

h2=0+50t-4.9t^2

set them equal, solve for t.

Then put time t into either, to solve for final height.

- Physics -
**Joe**, Thursday, October 4, 2012 at 7:09pmThe acceleration due to gravity on planet X is

one fifth that on the surface of the earth.

If it takes 3.9 s for an object to fall a certain

distance from rest on earth, how long would

it take to fall the same distance on planet X?

**Answer this Question**

**Related Questions**

UTA - An object is thrown downward with an initial speed of 10 m/s from a height...

physics - A first object is thrown vertically upward with some initial speed and...

physics - An object is thrown straight up. At the same instant that the object ...

Physics - A rock is thrown downward from an unknown height above the ground with...

Physics - One object is thrown straight up at 54.9 m/s from the ground at the ...

Physics - An object is thrown upwards at an initial speed of 19.6m/s from a ...

Physics - A blue ball is thrown upward with an initial speed of 19.6 m/s, from ...

Applied Calculus - Suppose that an object is thrown down towards the ground from...

Physics - A red ball is thrown down with an initial speed of 1 m/s from a height...

physics - A blue ball is thrown upward with an initial speed of 20.6 m/s, from a...