posted a question
A ball is shot from the ground into the air. At a height of 9.1 m, the velocity is observed to be v = (6.8 i + 7 j) m/s, with i horizontal and j upward.
(a) To what maximum height does the ball rise?
1 m
(b) What total horizontal distance does the ball travel?
2 m
(c) What is the magnitude of the ball's velocity just before it hits the gound?
3 m/s
(d)What is the direction of the ball's velocity just before it hits the ground?
4° relative to the horizontal
Tutor answered the question
Dear Student

Please find...  

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a) At height of 9.1 m vertical upward speed of the ball

Hence maximum height



6.8i + 7j



9.1 m

H

R

b) Let the initial velocity at point of projection





Hence total horizontal distance...