What will be the speed of the mass after sliding 4.0 m along the - ProProfs Discuss

# What will be the speed of the mass after sliding 4.0 m along the plane?

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A 2.0-kg mass is released from rest at the top of a plane inclined at 20Â° above horizontal. The coefficient of kinetic friction between the mass and the plane is 0.20.

A. 2.2 m/s
B. 3.0 m/s
C. 3.5 m/s
D. 5.2 m/s

This question is part of Chapter 6: Work and Energy
Asked by Drtaylor, Last updated: Mar 25, 2020

#### W. Pratt

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W. Pratt, Marketing Analyst, MBA, Lincoln

The correct answer to this question is C, 3/5 m/s.This question is one which would be used in physics and relates to kinetic energy. Mass has an affect on accelaration, which affects speed indirectly. It is used to determine how quickly an object accelerates under the force of action.

Mass is also used to determine how strong a force is to accelerate an object at a rate. The equation for measuring a constant mass is F = ma. This equation is apart of Newtown's Law and it is the second law. F stands for force, M for mass, and a is for acceleration.

John Smith