How Can Physics Predict the Danger Zone for Plants from Falling Snow?

Click For Summary

Homework Help Overview

The discussion revolves around a physics problem related to 2-D kinematics, specifically focusing on the scenario of snow sliding off a roof and potentially damaging plants below. The original poster describes a situation in Central Oregon where snow falls from a roof with a specific pitch and initial speed, raising questions about the distance from the house where the snow will land.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants explore how to calculate the distance from the house where the snow will hit the ground, considering the initial speed and the angle of descent. There are inquiries about the angles involved and clarification on the problem setup.

Discussion Status

Some participants have provided insights into the calculations needed, such as breaking down the initial speed into horizontal and vertical components and applying equations of motion. However, there is still uncertainty regarding the angles involved and the next steps in the problem-solving process.

Contextual Notes

Participants note a lack of clarity regarding the angles provided in the problem, which may affect the calculations. The original poster expresses difficulty in determining how to proceed with the information given.

sasuke07
Messages
53
Reaction score
0

Homework Statement



So...In Central Oregon there is a winter time problem that is troublesome to gardeners having to do with large masses of snow sliding off the roof and crushing plants and shrubs on the ground. Physics (in particular 2-D Kinematics) allows us to determine some features of the vegetative danger zone. We'll assume for the purposes of this activity that the roof is a typical 4 in 12 pitch (meaning it rises 40 cm and it goes inwards 120 cm ) and experiments have shown that when large amounts of snow slide off they leave the edge of the roof at 2.4 m/s. The edge of the roof is 3.3 m above the ground and 40 cm outward from the wall of the house.

Homework Equations





The Attempt at a Solution


I honelsty don't even know where to begin. Our teacher likes to gives us scenerios and for us to figure out possible questions that he might ask depending on the scenerio. If someone could give me a jumping off point or anything would be helpful. attached is the scenerio in picture form.
 

Attachments

  • snowroof.jpg
    snowroof.jpg
    3.3 KB · Views: 541
Physics news on Phys.org
Well, it looks to me like the question is, "How far from the house will the snow hit the ground?" You are given the speed at which the snow comes off the house, and the angle at which it comes off. You can calculate the horizontal and vertical components of the initial speed from that, then use the equations of motion, with no acceleration horizontally and the acceleration due to gravity vertically, to find the time and distance from the house at which the snow hits the ground.
 
thanks for the quick reply but besides the 90 degree angle, could you tell me what other angles were given. Becuaese i can't see them.
 
So i did some work, i just don't know where to go from here or really what angle i am supposed to use, please help
 

Attachments

  • IMG_0184.jpg
    IMG_0184.jpg
    13.4 KB · Views: 530