A metal ball is projected downward at an angle of 25° with the horizontal from the top of a building 300 m high. Its initial velocity is 20 m/s. (1) How long will it take before striking the ground? (2) How far from the base of the building will it strike? (3) With what velocity will it hit the ground? (4) At what angle with the horizontal will it strike?
A metal ball is projected downward at an angle of 25° with the horizontal from the top of a building 300 m high. Its initial velocity is 20 m/s. (1) How long will it take before striking the ground? (2) How far from the base of the building will it strike? (3) With what velocity will it hit the ground? (4) At what angle with the horizontal will it strike?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
Related questions
Question

Transcribed Image Text:ov si bu s
Problem 3
A metal ball is projected downward at an angle of 25° with the
horizontal from the top of a building 300 m high. Its initial velocity
is 20 m/s.
(1) How long will it take before striking the ground?
(2) How far from the base of the building will it strike?
(3) With what velocity will it hit the ground?
(4) At what angle with the horizontal will it strike?
SKETCH
Step 1: Find First the vertical and horizontal initial velocity
components.
Solve her e
Step 2. Find the vertical velocity component (vfy).
Solve here

Transcribed Image Text:Step 3. Find the time before striking the ground.
Solve here
o id nogu slym al o o
Step 4. Find the horizontal distance
Solve here
Step 5. Use the Pythagorean Theorem to resolve the velocity
downward.
Solve here
Step 6. Its angle upon hitting the ground
Solve here
dvl
Step 7. The initial horizontal velocity component (vix) is equal to
final horizontal velocity component (vfx).
Solve here
द
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images

Recommended textbooks for you

College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning

University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON

Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press

College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning

University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON

Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press

Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning

Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley

College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON