5. [-/10 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER
A fireman $d = 36.0$ m away from a burning building directs a stream of water from a ground-level fire hose at an angle of $\theta_i = 24.0^\circ$ above the horizontal as shown in the figure. If the speed of the stream as it leaves the hose is $v_i = 40.0$ m/s, at what height will the
stream of water strike the building?
m
Submit Answer
6. [-/10 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER
A playground is on the flat roof of a city school, $h_b = 5.00$ m above the street below (see figure). The vertical wall of the building is $h = 6.40$ m high, to form a 1.4-m-high railing around the playground. A ball has fallen to the street below, and a passerby returns it by
launching it at an angle of $\theta = 53.0^\circ$ above the horizontal at a point $d = 24.0$ m from the base of the building wall. The ball takes 2.20 s to reach a point vertically above the wall.
(a) Find the speed at which the ball was launched.
$\Box$ m/s
(b) Find the vertical distance by which the ball clears the wall.
m