Concept explainers
The force exerted by the wall on the Pwhen she pushes off the wall.
Answer to Problem 72A
Explanation of Solution
Given:
The weight of the P is
The vertical acceleration with which P pushes the wall is
Formula used:
Newton’s Second Law:
The object’s acceleration is equivalent to the sum of the forces acting on the object divided by the object’s mass. That is,
According to Newton’s Third Law, for every action, there is an equal and opposite reaction. When a body
Calculation:
Consider the acceleration due to the gravity of Earth is
Consider the mass of P is denoted by
Find the mass of P as follows:
Apply Newton’s Second Law of Motion,
Find the force exerted by the wall on P as follows:
Conclusion:
Thus, the force exerted by the wall on P is
Chapter 4 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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