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?
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)...
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Transcribed Image Text: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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