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

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