A boy throws a tennis ball to the wall which is 7.5 m away. At themoment when the ball hits the wall, its vertical component remainsunchanged while the horizontal component reverses. Assuming thatthe initial velocity of the ball is vo = 20.0 m/s, it makes an anglea = 60° with the horizon, and the release height is 1.5 m, find thevo = 20 m/sm.following (take the gravitational acceleration9.8):a||a) At which height the ball hit the wall?1.5 mb) How long did it take to reach the wall?c) How long was the ball in the air after it hit the wall?d) Where did the ball hit the ground? (distance from the wall)e) What is the velocity of the ball when it reaches the ground?f) What is the maximum height the ball reaches?7.5 mImportant: Draw a sketch defining a coordinate system: x- and y-axes and the origin.Without this sketch the problem will be considered as not-solved!

Name: A boy throws a tennis ball to the wall which is 7.5 m away. At themom
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Description: A boy throws a tennis ball to the wall which is 7.5 m away. At themoment when the ball hits the wall, its vertical component remainsunchanged while the horizontal component reverses. Assuming thatthe initial velocity of the ball is vo = 20.0 m/s, it

this is a two dimensional problem V= 20m/s θ=60 Vx = horizontal velocity = VCos60=20x1/2= 10 m/s…

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moment when the ball hits the wall, its vertical component remai unchanged while the horizontal component reverses. Assuming th the initial velocity of the ball is vo = 20.0 m/s, it makes an ang a = 60° with the horizon, and the release height is 1.5 m, find t m. following (take the gravitational acceleration g = 9.8): %3D a) At which height the ball hit the wall? b) How long did it take to reach the wall? c) How long was the ball in the air after it hit the wall?

moment when the ball hits the wall, its vertical component remai unchanged while the horizontal component reverses. Assuming th the initial velocity of the ball is vo = 20.0 m/s, it makes an ang a = 60° with the horizon, and the release height is 1.5 m, find t m. following (take the gravitational acceleration g = 9.8): %3D a) At which height the ball hit the wall? b) How long did it take to reach the wall? c) How long was the ball in the air after it hit the wall?

Classical Dynamics of Particles and Systems

5th Edition

ISBN:9780534408961

Author:Stephen T. Thornton, Jerry B. Marion

Publisher:Stephen T. Thornton, Jerry B. Marion

Chapter2: Newtonian Mechanics-single Particle

Section: Chapter Questions

Problem 2.6P: In the blizzard of ’88, a rancher was forced to drop hay bales from an airplane to feed her cattle....

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A boy throws a tennis ball to the wall which is 7.5 m away. At the
moment when the ball hits the wall, its vertical component remains
unchanged while the horizontal component reverses. Assuming that
the initial velocity of the ball is vo = 20.0 m/s, it makes an angle
a = 60° with the horizon, and the release height is 1.5 m, find the
vo = 20 m/s
m.
following (take the gravitational acceleration
9.8):
a
||
a) At which height the ball hit the wall?
1.5 m
b) How long did it take to reach the wall?
c) How long was the ball in the air after it hit the wall?
d) Where did the ball hit the ground? (distance from the wall)
e) What is the velocity of the ball when it reaches the ground?
f) What is the maximum height the ball reaches?
7.5 m
Important: Draw a sketch defining a coordinate system: x- and y-axes and the origin.
Without this sketch the problem will be considered as not-solved!

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