mahmudabiazp3ekot

05.11.2019 • 

Physics

Consider a mass m moving in a frictionless plane that slopes at an angle α with the horizontal. write down the lagrangian in terms of coordinates x, measured horizontally across the slope, and y, measured down the slope. (treat the system as two-dimensional, but include the gravitational potential energy.) find the two lagrange equations and show that they are what you should have expected.

Ответ:

StupidFatChipmunk

02.10.2022

Physics

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the speed after 2 seconds = 20m/s

Explanation:

I took g as -10m/s² because the ball was moving against gravity

using V = u + gt

V = 40 - 10 X 2

V = 40 - 20

V = 20m/s

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