A ball is thrown with a velocity of 20 m/s at an angle of 33 dergrees above the horizontal.  It hits a brick wall that is 25.0 m away. a) Draw a well labeled diagram of this trajectory, including labels for all relevant quantities including unknowns. b) Resolve the initial velocity into components.  Show these on your diagram above. c) Find the time of flight before it hits the wall. d) Find the height above the floor at the point that it hits. e) Find the time for the ball to reach the top of its trajectory.  Does it hit the wall before or after this point?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter3: Motion Along A Straight Line
Section: Chapter Questions
Problem 99AP: Compare the distance traveled of an object that undergoes a change in velocity that Is twice its...
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A ball is thrown with a velocity of 20 m/s at an angle of 33 dergrees above the horizontal.  It hits a brick wall that is 25.0 m away.

a) Draw a well labeled diagram of this trajectory, including labels for all relevant quantities including unknowns.

b) Resolve the initial velocity into components.  Show these on your diagram above.

c) Find the time of flight before it hits the wall.

d) Find the height above the floor at the point that it hits.

e) Find the time for the ball to reach the top of its trajectory.  Does it hit the wall before or after this point?

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I do not understand how in part e, t = t/2 = V0sin33/g

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