Answered: A skier of 50 kg starts from rest on a…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

A skier of 50 kg starts from rest on a hill at a point 40.0 m above the ground below. What is their speed at the bottom of the hill in m/s if the snow is assumed to be frictionless? Use g = 9.8 m/s².

Expert Solution

Step 1

Given :

mass of the skier, $= 50 K g$

Initial height of the skier, $h = 40 m$

gravitational acceleration, $g = 9.8 m / s^{2}$

Determine :

the velocity of the skier at the bottom of the hill if the snow is assumed friction less.

Concept :

Total energy of a system is always conserved or constant but it can change it's form from one to another.

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