Saturday

April 19, 2014

April 19, 2014

Posted by **Marvin** on Saturday, July 14, 2012 at 3:16am.

- Physics -
**Elena**, Saturday, July 14, 2012 at 7:29amThe max height is

H= v²/2g =80²/2•9.8 = 326.53 m.

The time of upward motion is

t1 =v/g =80/9.8=8.16 s,

the time of downward motion is

t2=sqrt{2(H-h)/g}=sqrt{2(326.53-3)/9.8} =8.126.

The total time is

t=t1+t2 =8.16+8.126 =16.126 s.

**Related Questions**

physics - A stone with mass m = 2.3 kg is thrown vertically upward into the air ...

Physics - A stone is thrown from the edge of a cliff into the ocean below. It is...

Physics - A stone is thrown from the edge of a cliff into the ocean below. It is...

Physics - Two stones are thrown vertically upward from the ground, one with ...

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 ...

Physics - A stone is thrown straight upward with a speed of 12 m/s from the edge...

physics - a girl throws a stone vertically upward with an initial speed of 8 m/s...

Physics - A stone is thrown up vertically from the ground (the gravitational ...

science - Two stones are thrown vertically upward from the ground, one with ...