Saturday

March 28, 2015

March 28, 2015

Posted by **irna** on Saturday, April 23, 2011 at 3:28am.

- physics -
**drwls**, Saturday, April 23, 2011 at 9:21amSolve for the t when

first stone height = second stone height

300 - 4.9 t^2 = 75 t- 4.9 t^2

The "4.9" is g/2, in m/s^2

75 t = 300

t = 4 seconds

height = 300 - 4.9*16 = 226 m

**Answer this Question**

**Related Questions**

physics - a stone is from the top of a tower 300m high and at the same time ...

physics - Stone dropped from top of a tower 100m high. At same instant another ...

physics - Stone dropped from top of a tower 100m high. At same instant another ...

Physics - A stone is thrown vertically upward from the top of the tower with a ...

mechanics - A stone is thrown vertically up from the top of the tower 40m high ...

physics - A stone is dropped from a 75 m high building. when this stone has ...

physics - A stone is dropped from a 75 m high building. when this stone has ...

physics - A boy drops a stone-A, down from a cliff 480 meters high, next he ...

Dynamics - A stone is thrown vertically upward from the top of a 30m high ...

Dynamics - A stone is thrown vertically upward from the top of a 30m high ...