Tuesday

July 29, 2014

July 29, 2014

Posted by **Derp** on Wednesday, August 22, 2012 at 2:03am.

- Physics -
**drwls**, Wednesday, August 22, 2012 at 3:09amSolve this equation for t:

H(t) = 55 + 19.6 t -4.9 t^2 = 0

Take the positive root. (There will be two solutions.)

- Physics -
**charlie**, Wednesday, August 22, 2012 at 9:39amDrwls

Could it also be solved by using

v=u+at for the upward throw;then another motion equation for the upward distance; added to the fall time (sqrt 2h/g) all the way to the bottom?

Charlie

- Physics -
**drwls**, Wednesday, August 22, 2012 at 10:10amYes, that would work also.

**Related Questions**

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

math - An object is thrown or fired straight upwards at an initial speed of v_0 ...

math - An object is thrown or fired straight upwards at an initial speed of v_0 ...

Math - The acceleration of an object g = -9.8 m/s^2. From the top of a building ...

Physics - An object is thrown upwards with a speed of 14.0 m/s. How long does it...

PHYSICS - An object is thrown straight upwards from the ground at 28 m/s. Due to...

physics - An object of mass 26 kg is thrown straight upwards from the ground at ...

-MATH- - h=-16t2+80t+96 Use this position polynomial to calculate the following...

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

physics - An object is thrown upwards and after 2 seconds is 78 m above where it...