A brick is thrown upward from the optimal of a building at an angle of 25˚ come the horizontal and with one initial rate of 15 m/s. If the brick is in flight for 3.0 s, how tall is the building?
Who are the experts?Our certified Educators are actual professors, teachers, and scholars who usage their academic expertise come tackle her toughest questions. Educators go with a rigorous applications process, and every price they submit is the evaluation by ours in-house editorial team.

You are watching: A brick is thrown upward from the top of a building at an angle of


*

let us job the position of the brick to the vertical axis. Signify the initial height by H (it is the height of the building) and also obtain the complying with equation:

H(t) = H + V0*sin(a)*t - (g*t^2)/2.

here V0 is the early velocity (15m/s), a is one angle above horizontal...


Start her 48-hour totally free trial to unlock this answer and also thousands more. Enjoy rewildtv.com ad-free and also cancel anytime.


Let us task the position of the brick to the vertical axis. Signify the initial height by H (it is the height of the building) and also obtain the complying with equation:

H(t) = H + V0*sin(a)*t - (g*t^2)/2.

Here V0 is the early stage velocity (15m/s), a is an angle over horizontal (25°) (+ is indigenous the "upward"). And also g is the acceleration of heaviness (approx. 9.8m/s^2).

We understand that H(3s)=0, so

H = g*(3^2)/2 - V0*sin(a)*3 = 9.8*4.5 - 15*sin(25°)*3.

Use calculator and obtain the answer, 44.1-19=25.1(m).

Of course we disregard the air resistance here.

See more: What Is 189 Cm In Feet And Inches ? What Is 189 Cm In Feet And Inches


approved by rewildtv.com Editorial Team

Ask a Question

ask a question
Submit question

Popular Questions


see all

Related Questions

Browse every
Math

recent answer posted September 22, 2011 in ~ 2:14:37 afternoon


A ball is thrown horizontally from the peak of a structure 49.5 m high. The sphere strikes the ground at a suggest 43.5 m native the base of the building.Find the initial velocity the the ball. The...


4 educator answers

Math

latest answer posted October 04, 2009 in ~ 11:25:10 pm


at what speed have to the 2nd ball it is in thrown so that it will the same elevation as the one thrown vertically? prize in systems of m/s.A round is thrown right upward and returns to the throwers...


2 educator answers

Math

recent answer post November 07, 2011 at 2:23:26 am


A security camera is placed on the optimal of one 80 m tall building. The angle of key from the camera come the height of another building is 42 degree. The angle of depression from the camera to...


1 educator answer

Math

latest answer posted might 11, 2012 at 2:20:51 to be


A ladder 20 feet long leans against a upright building. If the bottom of the ladder slides away from the structure horizontally in ~ a rate of 3 feet/sec.how rapid is the ladder sliding under the...


1 educator answer

Math

latest answer posted September 13, 2012 at 2:55:51 pm


an item is thrown right up native ground level v a speed of 50 m/s. If g = 10 m.s^2, what is that is distance over ground level 1.0 s later.


1 educator answer
rewildtv.com will aid you with any type of book or any kind of question. Ours summaries and analyses space written by experts, and also your questions are answered by real teachers.

sign up with rewildtv.com


use to be an educator

Recommended

More


©2021 rewildtv.com, Inc. All civil liberties Reserved