PROBLEM: A   man  was  standing  on one  side  of  the  roof  of  a  building 145 meter above  the  ground and  shot  a  projectile with  an  initial  speed  of 53 m/s at  an  angle  of 30.0  degrees  with  the  horizontal.   FIND: a)  the  time ( seconds)  it  took the  projectile to  hit  the  ground   b)  how   far (meter) away  from  the  base  of  the  building did  the  projectile  land?   c)  Find  the  vertical  and  horizontal  components  of  the  velocity (m/s)

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter2: One Dimensional Motion
Section: Chapter Questions
Problem 10PQ: As shown in Figure 2.9, Whipple chose a coordinate system that was different from Cralls. There are...
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TOPICS RELATED TO:

  1. PROJECTILE MOTION
  2. NEWTON’S LAWS OF MOTION
  3. KINEMATICS

 

INSTRUCTIONS:

Express  all  answers  in  significant  figures and  scientific notation or else deduction to your score when instructions not followed.

 

PROBLEM:

A   man  was  standing  on one  side  of  the  roof  of  a  building 145 meter above  the  ground and  shot  a  projectile with  an  initial  speed  of 53 m/s at  an  angle  of 30.0  degrees  with  the  horizontal.

 

FIND:

a)  the  time ( seconds)  it  took the  projectile to  hit  the  ground

 

b)  how   far (meter) away  from  the  base  of  the  building did  the  projectile  land?

 

c)  Find  the  vertical  and  horizontal  components  of  the  velocity (m/s)

 

d)  what  is  its  velocity  in m/s

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