Question

A ball is thrown from the ground onto a roof of height yroof 16 m from a distance of x 7 meters away as shown in the diagram to the left. The maximum height of the ball's trajectory is ymax 3.2 meters above the top of the roof. Standard Exercise Roof Toss Standard Exercse Cliff Toss 1) Find the required initial vertical component of the velocity, V vy 0 m/s Submit Help 2) Find the time for the ball to reach maximum height. t s Submit Help 3) Find the time for the ball to fall from the maximum height to the rooftop. t Submit Help 4) Find the initial horizontal component of the velocity. m/s Submit Help Roof Toss 3 4 y max Y roof A ball is thrown from the ground onto a roof of height yraof-16 m from a distance of x-7 meters away as shown in the diagram to the left. The maximum height of the ball's trajectory is ymg 3.2 meters above the top of the roof. 1) Find the requlred initial vertical component of the velocity, V Vy m/s Submit Help 2) Find the time for the ball to reach maximum height. ts FT F2 41 F7 FS F6 F8 # $ & 2 3 4 5 8 itatesimutaDT

Answer 1

1. Maximum hight = (3.2+16) mo E 11-2m he knew Atso that Hmax 29 uyusine and So Hmax Vg=J23 Mmax 19.393 mls. time taken to uah maximunm height =to time of blight 2usine Where to to sing 1.97948 second 2- 3 max 3.2 m at ymax0 usiny Sutt at So , 8.2 = 0+2x4.8 t2 3-2X2 9-5 6.803122 Secemdy 1. Vato0.1012) V (2.787602) = 7 V 2.S18a mys ..