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 (7.5i + 6.2j) m/s, with horizontal and upward (a) To what maximum height does the ball rise? (b) What total horizontal distance does the ball travel? What is the magnitude of the ball's velocity just before it hits the ground? mls (d) What is the direction of the ball's velocity just before it hits the ground? counterclockwise from the +i direction
A ball is shot from the ground into the air: At a height of 9.1 m, the velocity is observed to be V (7.5i + 6.2j) m/s, with horizontal and upward (a) To what maximum height does the ball rise? (b) What total horizontal distance does the ball travel? What is the magnitude of the ball's velocity just before it hits the ground? mls (d) What is the direction of the ball's velocity just before it hits the ground? counterclockwise from the +i direction


Answers
Shot into the Air A ball is shot from the ground into the air. At a height of $9.1 \mathrm{~m}$. Its velocity is observed to be $\vec{v}=(7.6 \mathrm{~m} / \mathrm{s}) \hat{\mathrm{i}}+$ $(6.1 \mathrm{~m} / \mathrm{s}) \hat{\mathrm{j}}$ (i horizontal, $\hat{\mathrm{j}}$ upward). (a) To what maximum height does the ball rise? (b) What total horizontal distance does the ball travel? What are (c) the magnitude and (d) the direction of the ball's velocity just before it hits the ground?