Friday

August 22, 2014

August 22, 2014

Posted by **mely** on Wednesday, January 26, 2011 at 1:02am.

What must her minimum speed be just as she leaves the top of the cliff so that she will miss the ledge at the bottom, which is 1.75 {m} wide and 9.00 {m} below the top of the cliff?

- physics -
**drwls**, Wednesday, January 26, 2011 at 5:41amCalculate the time to fall 9.00 meters, and call it T

T = sqrt (2H/g)= 1.355 s

Require that

V* T > 1.75 m

Vmin occurs when V = (1.75 m)/T

= 1.29 m/s

- physics -
**Henry**, Thursday, January 27, 2011 at 8:17pmmely, check your 1-26,12:52am post.

**Related Questions**

physics - A boulder rolls off a cliff that is 20 m above the surface of a lake ...

Wile E. Coyote - The determined Wile E. Coyote is out once more to try to ...

Physics - A stunt driver wants to make his car jump over 8 cars parked side by ...

physics - A diver running 2.4 m/s dives out horizontally from the edge of a ...

physics - A student stands at the edge of a cliff and throws a stone ...

physics - Consider a swimmer who wants to swim directly across a river as shown ...

physics - What must her minimum speed be just as she leaves the top of the cliff...

Physics - A stone is aimed at a cliff of height h with an initial speed of v = ...

Physics - A stone is aimed at a cliff of height h with an initial speed of v = ...

Physics - A stone is aimed at a cliff of height h with an initial speed of 62 m/...