Categories
English Grammar Sociology Fundamentals of Information Technology Civil procedure Psychology Political Science Project Management Operating System Management Economics Medicine and Pharma Computer Fundamentals Finance Computer Programming Financial Management Developmental Psychology Professional Communication for Pharmacists Fundamentals of Operating Systems Biostatistics Biochemistry Behavioural Science College Physics A Statistics for Psychologists Basic Electrical Engineering Chemistry Microeconomics Electronics and Communication Pyhsics and AstroPhysics Java Programming Geochemistry Data Communication and Computer Networks Questions on universities Job and Internships Managerial Economics Object Oriented Programming Security Analysis Consumer Behaviour Introduction to Business Software Engineering Management Information Systems Engineering Materials Business Administration Engineering Law of Torts Agronomy History & Philosophy On Docsity Analytical Chemistry Psycology & Sociology Biology & Chemistry Social Psychology Physics General Pharmacy Mathematics Computer Architecture Computer Graphics and Animation Applied Physics Human Resource Management Literature and Communication Botony Political sciences Biology Business Law Advanced Computer Architecture Introduction to the Science and Engg Business Management Fuzzy Intelligence Boilers and Welding Engineering Physics Internet and Java Programming Law Admission tests Digital electronics Business System Economic Theory History Generic Network Technologies and TCP/IP The Physics of Everyday Life American (United States) History Effective Business Communication Accounting Computer science Criminal Law Communication Skills Languages Aerospace Engineering Advanced Physics Statistics and Economics Information System Analysis and Design Soil Mechanics and Foundations United States Philosophy Statistics Biological Systems Methods in Psychology Pharmacy

A ball is thrown toward a cliff of height with a speed of 31 and an

0 votes

February 19th, 2013 05:01
in Advanced Physics by ekambar (Albany State University (GA), Chemistry)

A ball is thrown toward a cliff of height with a speed of 31 and an angle of 60 above horizontal. It lands on?

"A ball is thrown toward a cliff of height h with a speed of 31 m/s and an angle of 60 degrees above horizontal. It lands on the edge of the cliff 3.7 laters.

a) how high is the cliff

b) what is the ball's impact speed ?

 

thank you"

6 Answers
0 votes

February 25th, 2013 07:32
ralphie (University of Cambridge, Microbiology)
"∆y = h? V_oy = sin60(31) = 31√3/2 V_fy = 0 (pretty sure its safe to assume that it barely reached the cliff, so Vfy = 0) t = 3.7 s a = -9.8 m/s^2 ∆y = V_o * t + (1/2)at^2 ∆y = (31√3/2)(3.7) + (1/2)(-9.8)(3.7^2) ∆y = h = 32.25 m Now to find impact speed i just said V_fy = 0, so there must be some V_fx. ∆x? V_ox = 31cos60 = 31/2 V_fx = ? t = 3.7 s (same time as for y) a = 0 (In free fall there is only acceleration in the y direction, no x) V = V_o + at but since a = 0, there is nothing messing up the x directions trajectory since we are ignoring air resistance. So it will have the same velocity of: Vo = Vf = 31cos60 = 31/2 = 15.5 m/s"

Please log in or register to add a comment.

0 votes

April 16th, 2013 07:33
padmavati (Bengal Engineering & Science University, Computer sciences)
A high representative or maybe example of some thing

Please log in or register to add a comment.

0 votes

April 16th, 2013 09:57
parnashi (Birla Institute of Technology and Science, Computer sciences)
  This way of measuring from base to be able to top or maybe (of a position man or woman) from head over to base

Please log in or register to add a comment.

0 votes

April 23th, 2013 12:53
gajjdant (Bengal Engineering & Science University, Electrical Engineering)
The particular straight placement of any neume previously your Latina textual content. One can possibly visualize 'stature' seeing that comparable estimated at on the frequency of an be aware. Especially in early neumed paperwork, nonetheless, neume top might just become a normal warning associated with melodic steering. ...     

Please log in or register to add a comment.

0 votes

April 25th, 2013 09:14
savitri_122 (Biju Patnaik University of Technology, Rourkela, Aerospace engineering)
Traveling the aerogenerator towards the terrain is compared to growing solar power systems within the hue! Your current wind turbine ought to be situated at least xxx feet supra almost any blockage within more than 200 foot in a different path-- many resources suggest even more. ...

Please log in or register to add a comment.

0 votes

May 6th, 2013 13:59
dinday (Gandhi Institute of Technology and Management, Management)
Your message top makes The english language from the German born and it is linked to words and phrases such as go hupp and lot. ...

Please log in or register to add a comment.

Subjects