Concept explainers
The speed which theroller coaster reaches point 2.
Answer to Problem 50P
Solution:
Speed of roller coaster at point 2
Explanation of Solution
Given:
Height of point
Height of point
Point 2 is taken as reference point
Speed of ball at point
Distance travelled by roller
Friction force
FormulaUsed:
S : distance travelled
Calculation:
Potential energy at point 1
Potential energy at point 2
Kinetic energy at point 1
Kinetic energy at point 2
Calculation:
Work done by friction force depends upon distance travelled not displacement. Here work done by friction force is negative.Itconverts mechanical energy into thermal energy.
Chapter 6 Solutions
Physics: Principles with Applications
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