Top of a tower a stone, Physics

From top of a tower a stone is thrown up and it reaches the ground in time t1. A second stone is thrown down with the same speed and it reaches the ground in t2. A third stone is released from rest and it reaches the ground in time t3 then t3= ?

solution)

let the intial speed be ''u'' and height be ''h''.

h(-j)=u(j)*t1+0.5g(-j)*t12

Case(2)

h(-j)=u(-j)*t2+0.5g(-j)*t22

Case(3)

h(-j)=0.5g(-j)*t32

 

solve case 1 and case 2 for t1 and t2 (quadratic) .

 

Posted Date: 3/26/2013 12:57:50 AM | Location : United States





its very easy quest. we just need to find the values in u,g,and v(final velocity,this is constant for the first two cases)

for first throw.

t1= 2u/g + v-u/g=v+u/g

for second throw.

t2=v-u/g

for third release.

t3=u/g

so t3=(t1-t2)/2g

 

Posted by | Posted Date: 3/26/2013 12:58:51 AM


Related Discussions:- Top of a tower a stone, Assignment Help, Ask Question on Top of a tower a stone, Get Answer, Expert's Help, Top of a tower a stone Discussions

Write discussion on Top of a tower a stone
Your posts are moderated
Related Questions
KINEMATICS I 1.   x(t) is called displacement and it denotes the position of the body at a particular time. If the displacement is positive then that body is to the right of


INSTANTANEOUS VELOCITY: The velocity of a body at a certain instant of time is known as instantaneous velocity.

Dirive an expretion for low of succecive disintigretion

The Venturimeter (see figure) is a device used to calculate the flow speed of a fluid in a pipe. At the throat, the area is decreased from A to a and the velocity is increased from

In p-type semiconductor the majority carriers are (A) Holes. (B) Positive ions. (c) Electrons. (D) Negative ions. Ans: In p-type semiconductor the majori

A locus formed by joining the points which are at the equal distance from the source....is called wavefront...

Regard as two Styrofoam cups. Each one is on the end of its own neutral slender glass rod which serves as a handle. One of the cups has a fixed amount of positive charge consistent

These are non-metallic compounds consisting of ferric oxide and one or two bivalent metal oxides such as NiO, MnO. These have resistivity of the order of 10 9 O cm, which reduces e