A cannon ball, projected at 65° above the horizontal strikes a tower 25 m away at a point 15 m above the point of projection. a. Find the initial speed of the projectile. b. How long was it in the air? Find the magnitude and the direction of the velocity of the projectile when it strikes the tower.

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter4: Motion In Two And Three Dimensions
Section: Chapter Questions
Problem 39P: A projectile is launched at an angle of 30 and lands 20 s later at the same height as it was...
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A cannon ball, projected at 65° above the horizontal strikes a tower 25 m away at a point 15 m above the point of projection.
a. Find the initial speed of the projectile.
b. How long was it in the air?
Find the magnitude and the direction of the velocity of the projectile when it strikes the tower.

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