MasteringPhysics: Chapter 3 x https://session. mastering physics.com/ PHY 270A F
ID: 1609966 • Letter: M
Question
MasteringPhysics: Chapter 3 x https://session. mastering physics.com/ PHY 270A Foundations of Physics I (Chase) Spring 2017 Chapter 3 Problem 3.53: Look out! Problem 3.53: Look out! A snowball rolls off a barn roof that slopes downward at an angle of a 42.0 (See the figure below) The edge of the roof is 19.0 m above the ground, and the snowball has a speed of v 6.00 m/s as it rolls off the roof. Ignore air resistance.(Figure Figure 1 c a search Part A How far from the edge of the barn does the snowbal strike the ground if it doesn't strike anything else while falling? Express your answer in meters to three significant figures. Submit My Answers Give Up Signed in as Sabrina Cubell previous l 6 of 9 l next Brodde Eeedback ContinueExplanation / Answer
use, voy = 6*sin(42) = 4.01 m/s
vox = 6*cos(42) = 4.46 m/s
let t is the time taken for the ball to hit the ground.
use, y = voy*t + (1/2)*ay*t^2
H = voy*t + (1/2)*g*t^2
19 = 4.01*t + (1/2)*9.8*t^2
on solving the above equation we get
t = 1.602 s
so, d = vox*t
= 4.46*1.602
= 7.14 m <<<<<<<<<<------------------Answer