jamalinholastki9994 jamalinholastki9994
  • 09-10-2019
  • Physics
contestada

You drop a stone from rest into a well that is 5.2m deep. How long does it take before you hear the splash?

Respuesta :

aristeus aristeus
  • 10-10-2019

Answer:

So after 1.0301 sec we hear the splash

Explanation:

We have given that height of the well h = 5.2 m

As the stone is dropped from rest so initial velocity u = 0 m/sec

Acceleration due to gravity [tex]g=9.8m/sec^2[/tex]

We have to find the time

From second equation of motion we know that

[tex]h=ut+\frac{1}{2}gt^2[/tex]

[tex]5.2=0\times t+\frac{1}{2}\times 9.8\times t^2[/tex]

[tex]t^2=1.061[/tex]

t = 1.0301 sec

Answer Link

Otras preguntas

quadratic formula for 2x^2-7x-15 step by step
Help me please 1-3 thank you
the sum of two numbers is 50 the first number is 43 less than twice the second number write and solve a system of equations to find the two numbers
3. How did Mexico react when the United States annexed Texas?
which phrase is represented by 3(8-n)t2 a. the sum of two and three times the quotient of eight and a number,n b. the sum of two and three times the difference
how can I prove using laws of exponent that 16^2 and 2^8 are equal to each other?????????
AHHH Help thank you 1-4 <_<
-4(4x+4)=2(2-7x) how do u do this and you have to use WHO and check your answer by plugging it in the original equation.SHOW ALL WORK
I have 5 ? to ask there are here 1. mr.mcgurik surveyed the students in his class and found that 45% of them said their favorite color was red what decimal repr
Increase £30 by 15% what is the annswer